Jannik Sinner

2.1. Birth and Early Life

Jannik Sinner was born on August 16, 2001, in Innichen, located in the province of South Tyrol in Northern Italy. His parents, Hanspeter and Siglinde Sinner, worked as a chef and a waitress, respectively, at a ski lodge in the town of Sexten, where Jannik grew up. His family also includes an older adopted brother named Mark, who was born in Russia. Sinner's mother tongue is German. He began engaging in both skiing and tennis at the early age of three.

2.2. Multi-sport Activities and Transition to Tennis

From the age of seven to twelve, Sinner was one of Italy's top junior skiers. He won a national championship in giant slalom in 2008 at age seven and was a national runner-up in 2012 at age eleven. At age seven, he temporarily stopped playing tennis for a year, but his father encouraged him to return to the sport. Upon his return, he started working with Heribert Mayr as his first regular coach. Mayr noted that Sinner was so advanced for his age that he had to take individual lessons, as no child his age could keep up, and he was faster than older children. During this period, tennis remained his third priority, behind skiing and football. He would compete in a ski race in the morning and a football match for AFC Sexten (Youth) in the afternoon.

At the pivotal age of 13, Sinner made the decisive choice to abandon skiing and football to fully commit to tennis. This decision was influenced by his physical characteristics at the time, being tall and thin, weighing only 77 lb ^{(35 kg)}. He also preferred the individual nature of tennis, where he could compete directly against an opponent and have more control over the outcome, unlike team sports or individual sports like skiing where conditions varied.

2.3. Education and Training Environment

Following his decision to focus on tennis, Sinner made a significant move on his own to Bordighera in Liguria on the Italian Riviera. There, he began training intensively at the Piatti Tennis Center under the guidance of renowned coach Riccardo Piatti and Massimo Sartori. This decision was fully supported by his parents. Initially, Sinner lived with the family of Luka Cvjetković, one of his coaches, before moving into an apartment with two other boys. Prior to his full-time training with Piatti, he had only been playing tennis twice a week. He also pursued his academic development, graduating from the Walther Institute, a private economics school located in Bolzano.

4.1. Early Professional Career (2018-2019)

Sinner commenced his professional journey on the ITF Men's Circuit in early 2018. Due to his low ranking, he was initially only able to gain direct acceptance into ITF Futures events. However, in the latter half of the year, he began receiving wild cards to participate in ATP Challenger Tour events, the second-tier circuit governed by the Association of Tennis Professionals (ATP). His sole ITF title during 2018 was in doubles, and he concluded the season ranked No. 551 globally.

The year 2019 marked a significant turning point for Sinner. In February, at just 17 years and 6 months old, he captured his inaugural ATP Challenger title in Bergamo. This achievement was particularly notable as he entered the tournament without any previous match wins at the Challenger level, making him the first player born in 2001 to reach a Challenger final and the youngest Italian in history to win a Challenger title. This victory propelled him over 200 spots up the ATP rankings to No. 324. Following this, he secured two more ITF Futures titles in Trento and Pula in March.

Sinner made his ATP Tour debut at the Hungarian Open in April, entering as a lucky loser. He notched his first tour-level win against local wild card Máté Valkusz before losing in the second round. The subsequent week, he reached his second ATP Challenger final in Ostrava, finishing as runner-up to Kamil Majchrzak. In May, he made his ATP Masters debut at the Italian Open as a wild card, earning his first Masters victory over Steve Johnson. His subsequent win at the Croatia Open Umag in July saw him break into the top 200. In August, he claimed a second ATP Challenger title in Lexington, placing him among a select group of just eleven 17-year-olds to have won multiple Challenger titles. Despite failing to qualify for Wimbledon, Sinner successfully qualified for his first Grand Slam main draw at the US Open, where he lost his debut match to No. 24 Stan Wawrinka.

Sinner concluded the 2019 season with a strong performance. As a wild card at the European Open in October, he became the youngest player in five years to reach an ATP semifinal, achieving his first career top 50 victory by defeating top seed and world No. 13 Gaël Monfils. This performance helped him break into the top 100 the following week. At the end of the season, Sinner, as the Italian wild card and lowest seed, qualified for and won the 2019 Next Gen ATP Finals in Milan, upsetting top seed and world No. 18 Alex de Minaur in straight sets. He followed this by winning a third Challenger title in Ortisei the next week. Sinner finished the year ranked world No. 78, making him the youngest player in the year-end top 80 since Rafael Nadal in 2003. He was also honored with the ATP Newcomer of the Year award and the Gazzetta Sport Award for Best Performance of the Year.

4.2. Breakthrough and First ATP Title (2020)

Jannik Sinner continued his momentum into the 2020 season. At the 2020 Australian Open, he secured his first Grand Slam main draw match win by defeating home wild card Max Purcell before falling to Márton Fucsovics in the second round. As a wild card at the Rotterdam Open, he achieved his first top 10 victory by overcoming world No. 10 David Goffin.

The ATP Tour faced a temporary shutdown due to the COVID-19 pandemic, but Sinner experienced a successful resurgence upon its resumption. While he suffered an opening-round loss to Karen Khachanov at the US Open, he showed stronger form in Europe. At the Rome Masters, he reached the third round, notably defeating world No. 6 Stefanos Tsitsipas. His impressive run continued at the French Open, where he became the youngest quarterfinalist since Novak Djokovic in 2006 and the first player to reach the quarterfinals on debut since Rafael Nadal in 2005. During the tournament, he again defeated Goffin and also overcame US Open runner-up and world No. 7 Alexander Zverev before his campaign was ended by Nadal in the quarterfinals.

Following a semifinal appearance at the Cologne Championship, where he was defeated by Zverev, Sinner closed out the season by winning the Sofia Open. This marked his first career ATP title, earned by defeating Next Gen rival Alex de Minaur and then Vasek Pospisil in the final. This victory established him as the youngest Italian tour-level champion in the Open Era and the youngest player overall to win an ATP title since Kei Nishikori in 2008. Sinner concluded the year ranked world No. 37.

4.3. Top 10 Entry and Masters Final (2021)

Jannik Sinner effectively carried his late 2020 success into the beginning of the 2021 season. He won his second career ATP title at the Great Ocean Road Open, notably saving a match point against No. 20 Karen Khachanov in the semifinals. This made him the youngest player to win back-to-back ATP titles since Rafael Nadal in 2005. His impressive ten-match winning streak, however, concluded in the first round of the 2021 Australian Open, where he lost a closely contested five-set match to world No. 12 Denis Shapovalov.

Sinner achieved his next significant result at the Miami Open, where he reached his first ATP Masters 1000 final. En route, he defeated Khachanov again and later world No. 12 Roberto Bautista Agut in the semifinal, eventually finishing as runner-up to Hubert Hurkacz. His campaign at the French Open was cut short for the second consecutive year by Rafael Nadal, who defeated him in straight sets in the fourth round. In his main draw debut at Wimbledon, Sinner lost in the first round to Márton Fucsovics.

In doubles, partnering with Reilly Opelka, Sinner secured his first doubles title at the 2021 Atlanta Open, defeating the team of Steve Johnson and Jordan Thompson. In singles at the same tournament, he was eliminated in the second round by Christopher O'Connell.

At the 2021 Citi Open in Washington, D.C., Sinner, seeded fifth, advanced to the finals by overcoming several young talents, including Emil Ruusuvuori, Sebastian Korda, and Jenson Brooksby. He defeated Mackenzie McDonald in the final to win his third ATP title and first ATP 500 title. This made him the first Italian finalist and champion in Washington's tournament history, as well as the youngest ATP 500 champion and first teen champion since the category's inception in 2009. As a result, he entered the top 15 in the ATP rankings on August 9, 2021.

At the US Open, he defeated Gaël Monfils in the third round to reach the second week of a Major for the second time that season before losing to Alexander Zverev in the fourth round. Sinner successfully defended his title at the Sofia Open as the top seed, again defeating second seed Gaël Monfils in the final. He made his sixth career final appearance at the 2021 European Open without dropping a set, defeating Lorenzo Musetti, Arthur Rinderknech, and Lloyd Harris en route. He then bested Diego Schwartzman in the final to claim his fifth career title, becoming the youngest man to win five ATP titles since 19-year-old Novak Djokovic.

On November 1, Sinner became the first male player born in the 2000s to break into the top-10 after reaching the semifinals of the Vienna Open. At the Rolex Paris Masters, Sinner was defeated by Carlos Alcaraz, preventing his direct qualification for the season-ending Nitto ATP Finals. However, he entered the ATP Finals in Turin as the first alternate after countryman Matteo Berrettini withdrew due to injury. Sinner defeated Hubert Hurkacz, becoming the youngest player to win an ATP Finals match on debut since Lleyton Hewitt in 2000 and the first alternate to win a match since Janko Tipsarević in 2011. Although he held a match point against Daniil Medvedev in his next round-robin match before losing in three sets, his performance allowed him to re-enter the top-10 and finish the year ranked world No. 10 on November 22, 2021. In the Davis Cup Finals, Sinner defeated John Isner, becoming only the second player to bagel (6-0 set win) Isner.

4.4. Grand Slam Quarterfinals and Clay Court Title (2022)

In 2022, Jannik Sinner demonstrated consistent performance in major tournaments. At the Australian Open, he reached the quarterfinals of a major for the second time in his career, becoming the fifth Italian man to achieve this feat in Melbourne. He was subsequently defeated by fourth seed Stefanos Tsitsipas in straight sets.

At the Miami Open, Sinner displayed remarkable resilience, saving three match points against Emil Ruusuvuori in the opening round and five match points against Pablo Carreño Busta to advance to the round of 16. He then defeated Nick Kyrgios but retired from his quarterfinal match against Francisco Cerúndolo. His clay court season saw him reach the quarterfinals of the Monte Carlo Masters after defeating fifth seed Andrey Rublev, before losing a gruelling three-hour match to second seed Alexander Zverev. At the Madrid Open, he again saved three match points in his opener against Tommy Paul. In the next round, he defeated Alex de Minaur to secure his 100th career win. This milestone was achieved in 147 matches (100-47), a faster rate than any player in the Top 10 at the time, except Rafael Nadal (100-37) and Novak Djokovic (100-43). He was ultimately defeated in the third round by Félix Auger-Aliassime. At the French Open, Sinner retired in the fourth round against Andrey Rublev due to a knee injury.

On grass, Sinner suffered an opening-round loss at the Eastbourne International to Tommy Paul. However, at the 2022 Wimbledon Championships, he recorded his first win at this Major over Stan Wawrinka. He went on to defeat Mikael Ymer, John Isner, and Carlos Alcaraz to reach his third career Grand Slam quarterfinal. He was eventually defeated by top seed and eventual champion Novak Djokovic in five sets in the quarterfinals, after initially leading by two sets to love.

Sinner won his first clay court title at the Croatia Open, defeating Carlos Alcaraz in the final. In Montreal, he lost to eventual champion Pablo Carreño Busta in the third round. At the Cincinnati Masters, he lost to Félix Auger-Aliassime in the third round despite being up a set, a break, and holding two match points.

Seeded 11th at the US Open, Sinner reached the fourth round after defeating Brandon Nakashima. He then overcame Ilya Ivashka in a five-set match lasting nearly four hours to reach the quarterfinals for the first time at this Major. This achievement made him the youngest player to reach the quarterfinals of all four Grand Slam tournaments since Novak Djokovic in 2007-08. He was defeated by Carlos Alcaraz in an epic five-set match that lasted 5 hours and 15 minutes, setting a record as the latest finish (at 2:50 AM EST) and second-longest match in US Open history. Sinner notably held a match point while serving up 5-4 in the fourth set.

In September, during the Davis Cup Finals, Sinner secured Italy's Davis Cup team a place in the Final 8 by winning his singles match against Argentina after Matteo Berrettini won his. After nearly a month's break due to an injury sustained in the semifinal at the 2022 Sofia Open, he returned to the 2022 Erste Bank Open in Vienna, reaching the quarterfinals where he lost to top seed and eventual champion Daniil Medvedev. In his next tournament, the 2022 Rolex Paris Masters, he lost in the first round to qualifier Marc-Andrea Huesler. Sinner concluded the year ranked 15th in the world.

4.5. First Masters 1000 and Davis Cup Titles (2023)

Jannik Sinner commenced his 2023 season at the 2023 Adelaide International 1, where he was defeated in the quarterfinals by eventual runner-up Sebastian Korda. At the 2023 Australian Open, he was eliminated in the fourth round by eventual runner-up Stefanos Tsitsipas in a five-set encounter.

Sinner then secured his seventh career title at the Open Sud de France in Montpellier, becoming the first player that season to win a tour-level title without dropping a single set. At the ABN AMRO Open, he avenged his Australian Open loss by defeating top seed and world No. 3 Stefanos Tsitsipas, marking his biggest career win to date. He subsequently defeated Stan Wawrinka and local favorite Tallon Griekspoor to reach the final, where he was defeated by sixth seed Daniil Medvedev.

In March, Sinner competed at Indian Wells, where he overcame Richard Gasquet, Adrian Mannarino, and Stan Wawrinka in straight sets to advance to the quarterfinals. He then defeated defending champion Taylor Fritz in a three-set match before losing to career rival and top seed Carlos Alcaraz in straight sets in the semifinals. At the Miami Open, he reached the quarterfinals for a third consecutive year after defeating Grigor Dimitrov and Andrey Rublev, which propelled him back into the top 10 at world No. 9. He then defeated Emil Ruusuvuori to reach back-to-back semifinals, where he again faced defending champion Carlos Alcaraz. This time, Sinner prevailed, ending Alcaraz's hopes for a "Sunshine Double" and preventing him from regaining the No. 1 ranking. However, he was defeated by fourth seed Daniil Medvedev in straight sets in the final, extending his losing streak against the Russian to 0-6 at that point.

At the Monte Carlo Masters, Sinner reached a third consecutive Masters semifinal, defeating compatriot and 16th seed Lorenzo Musetti before losing to Holger Rune. At the French Open, Sinner suffered an upset loss in the second round to Daniel Altmaier in a five-set marathon match lasting 5 hours and 26 minutes, despite serving for the match in the fourth set and holding two match points. This was his longest career match and the fifth-longest in tournament history.

He reached back-to-back quarterfinals at Wimbledon after defeating Juan Manuel Cerundolo, Diego Schwartzman, Quentin Halys, and Daniel Elahi Galán. He then reached his first Major semifinal after defeating Roman Safiullin, before losing to Novak Djokovic in straight sets. In August, Sinner claimed his maiden Masters 1000 title at the Canadian Open, defeating compatriot Matteo Berrettini, Andy Murray (by walkover), Gaël Monfils, and Tommy Paul en route to the final, where he defeated Alex de Minaur in straight sets for his eighth ATP title.

At the China Open, he defeated world No. 2 Carlos Alcaraz, his fourth tour-level win against the Spaniard, to reach his fifth final of the season. He then defeated world No. 3 Daniil Medvedev for the first time in seven attempts. As a result, he climbed to a career-high world No. 4, becoming the second Italian in ATP rankings history to reach the Top 5, equaling Adriano Panatta. At the Shanghai Masters, he lost in the round of 16 to Ben Shelton. He recorded his 55th win over Andrey Rublev to reach his fourth ATP 500 career final in Vienna, becoming the first Italian man with the most wins for a season in the Open Era, surpassing Corrado Barazzutti's 54-win mark from 1978. He won the final, defeating top seed Daniil Medvedev again, securing his tenth ATP title and consecutive finals victories over Medvedev.

In his debut at the ATP Finals, Sinner won all of his round-robin matches, including a notable victory over world No. 1 Novak Djokovic in a third-set tiebreaker, marking his fifth consecutive top-5 win. He ultimately lost in a rematch against Djokovic in the final. Sinner then made his debut in the Davis Cup, where he defeated Tallon Griekspoor in singles to help Italy win its quarterfinal tie against the Netherlands. In the semifinal, Sinner faced Djokovic for the third time in 11 days, becoming the first player to defeat him in a Davis Cup singles match since Juan Martín del Potro in 2011. He saved three consecutive match points in the third set, becoming only the fourth player to beat Djokovic from match points down and the first to do so with three in a row. He also became only the third player ever to defeat Djokovic twice in 12 days, alongside Rafael Nadal and Andy Murray. Sinner then partnered with Lorenzo Sonego for the decisive doubles match, defeating Djokovic and Miomir Kecmanovic to clinch the tie and help Italy reach the Davis Cup final for the first time since 1998. In the final, he defeated Australian Alex de Minaur to clinch the title for Italy, their first since 1976, ending a 47-year drought. Sinner was awarded the Most Improved Player of the Year award and voted the Fans' Favorite at the 2023 ATP Awards, while his coaches, Darren Cahill and Simone Vagnozzi, won the Coach of the Year award. Sinner also received the award for Best Tennis Player at the Supertennis Awards.

4.6. Grand Slam Champion, World No. 1, and Sanctions (2024-2025)

Jannik Sinner began his 2024 season at the Australian Open, where he showcased dominant form, defeating Botic van de Zandschulp, Jesper de Jong, Sebastián Báez, Karen Khachanov, and Andrey Rublev in straight sets to reach his second major semifinal and first at the Australian Open. In the semifinals, he caused a major upset by defeating world No. 1 and defending champion Novak Djokovic, becoming the first player not to face a break point against Djokovic in a completed major match. This marked Djokovic's first defeat at the Australian Open since 2018. Sinner became the first Italian player to reach the singles final at this major and the third Italian man, after Adriano Panatta at the 1976 French Open and Matteo Berrettini at the 2021 Wimbledon Championships, to reach a major final in the Open Era. In the final, he mounted a remarkable comeback from a two-set deficit to beat Daniil Medvedev (3-6, 3-6, 6-4, 6-4, 6-3), becoming the first Italian player, male or female, to win the Australian Open singles title, the third Italian man to win a Major (the second in the Open Era), and the first in 48 years. His victory over Medvedev meant he became the second player to win the Australian Open after losing the first two sets in the final, following Rafael Nadal in 2022.

As the top seed at the Rotterdam Open, Sinner recorded his 200th singles win in the quarterfinals against Milos Raonic (who retired with a hip injury), becoming the first player born in the 2000s to achieve this feat. After defeating Tallon Griekspoor in the semifinal and Alex de Minaur in the final, Sinner rose to a new career-high of world No. 3, becoming the highest-ranked Italian player in history. He also became the first male player since Lleyton Hewitt in 2001 to win his debut event as a major champion.

At the 2024 BNP Paribas Open, Sinner continued his winning streak. A victory over 25th seed Jan-Lennard Struff to reach the fourth round marked his 17th consecutive match win, the longest ATP-level streak for an Italian player in the Open Era. He extended this to 19 consecutive wins (16-0 in 2024) by defeating Jiří Lehečka in the quarterfinals. He competed in doubles with Lorenzo Sonego, defeating Karen Khachanov and Andrey Rublev before losing to Marcel Granollers and Horacio Zeballos. Later, Sinner's prize money and ranking points from Indian Wells were forfeited by a tribunal in relation to an anti-doping rule violation, though the initial ruling found "no fault or negligence." At the 2024 Miami Open, Sinner defeated Grigor Dimitrov in the final to claim his second Masters 1000 title. This result elevated him to a career-high and Italian record ranking of world No. 2, and he improved his 2024 ATP match record to 22-1.

Sinner's clay season saw his second defeat of the year to Stefanos Tsitsipas at the Monte-Carlo Masters in April. In May, Sinner withdrew from the Madrid Masters at the quarterfinal stage due to a hip injury, subsequently also withdrawing from the Italian Open. Following Novak Djokovic's withdrawal from the 2024 French Open on June 4, Sinner was assured of rising to world No. 1 for the first time on June 10, after the tournament's conclusion. He became the first Italian player (male or female) to hold the top position in the rankings. Sinner lost in the semifinal to Alcaraz in five sets.

At the 2024 Halle Open, Sinner defeated Tallon Griekspoor, Fábián Marozsán, Jan-Lennard Struff, Zhang Zhizhen, and Hubert Hurkacz to win his debut tournament as world No. 1, becoming just the eighth male player to achieve this feat. He improved his 2024 match record to 38-3. At the 2024 Wimbledon Championships, Sinner entered as the top seed in a major for the first time. He defeated Yannick Hanfmann, Matteo Berrettini, Miomir Kecmanović, and Ben Shelton, but lost to Daniil Medvedev in the quarterfinals in five sets after a medical timeout for illness during the third set. On July 24, Sinner announced his withdrawal from the 2024 Summer Olympics due to tonsillitis.

Sinner went on to win the 2024 Cincinnati Open, defeating Frances Tiafoe in the championship in straight sets. He also overcame Alex Michelsen, Andrey Rublev, and Alexander Zverev en route to his victory. This marked his second Masters 1000 title in the 2024 season and fifth title overall.

On August 20, 2024, an independent tribunal announced that Sinner had tested positive for the banned substance clostebol in separate tests from March 2024, during the Indian Wells tournament. The tribunal accepted Sinner's explanation that the clostebol had entered his body via massages administered by his physiotherapist, who had used a treatment containing the substance on his own hands. The tribunal ruled that Sinner bore "no fault or negligence" and that no period of ineligibility would apply, but he would forfeit prize money and ranking points earned at the Indian Wells tournament. The World Anti-Doping Agency (WADA) appealed this decision, and in February 2025, a settlement was reached where Sinner accepted a three-month suspension, effective from February 9 to May 4, 2025, due to inadvertent contamination. The overall process drew criticism from some active and former players, including Novak Djokovic, who voiced concerns about perceived favoritism towards high-ranked players regarding legal advice.

Sinner won his second major at the 2024 US Open, defeating 5th seed Daniil Medvedev in the quarterfinals, getting revenge for his previous Wimbledon loss. He then beat 25th seed Jack Draper in the semifinals and 12th seed Taylor Fritz in the final (6-3, 6-4, 7-5). He became the fourth man in over 50 years to win his first two major titles in the same season, and at age 23, the youngest man ever to win both hard-court majors in the same year. At the post-match ceremony, Sinner dedicated his win to his aunt.

At the 2024 China Open, Sinner defeated Nicolás Jarry, Roman Safiullin, Jiří Lehečka, and Yunchaokete Bu to reach the final, where he lost to Carlos Alcaraz in three sets. After defeating Tomáš Machač in the 2024 Shanghai Masters semifinal, Sinner was confirmed as the year-end world No. 1, becoming the first Italian player in history to achieve this ranking. Sinner then went on to win the championship against Novak Djokovic in straight sets (7-6^(7-4), 6-3) to win his third Masters 1000 title of the year, becoming the tournament's youngest-ever champion, and seventh overall title of 2024. In November, Sinner won the season's ATP Finals in Turin, Italy, by defeating Fritz (6-4, 6-4). This marked the first time since Ivan Lendl in 1986 that a player won the trophy without losing any set, and the first time ever that an Italian player won the title. He ended the 2024 season by defeating Netherlands' Tallon Griekspoor in the Davis Cup final, securing Italy's second consecutive title. Sinner completed the entire season without a single straight-set defeat, becoming only the second man in the Open Era (after Federer in 2005) to achieve this feat over a full year.

4.7. 2025: Australian Open Title and Sanctions

Entering the 2025 Australian Open as the defending champion, Jannik Sinner showcased dominant form throughout the tournament. He defeated Nicolás Jarry, Tristan Schoolkate, Marcos Giron, Holger Rune, and Alex de Minaur on his way to the semifinals. In the semifinals, he swept aside Ben Shelton in straight sets (7-6^(7-2), 6-2, 6-2). He then defeated Alexander Zverev in straight sets (6-3, 7-6^(7-4), 6-3) to successfully defend his title in the championship match on January 26, becoming the first player to defend his first Grand Slam title since Rafael Nadal in 2006.

In February 2025, for his 2024 positive test for Clostebol, the World Anti-Doping Agency (WADA) announced that they had entered a "case resolution agreement" with Sinner. WADA accepted the cause and explanation of the positive test but stated that "an athlete bears responsibility for the entourage's negligence." A three-month suspension was handed down, rendering Sinner ineligible from tennis competition from February 9 to May 4, 2025. This ban meant Sinner would miss several key tournaments, including the ATP 500 in Doha and the Masters 1000 events in Indian Wells and Miami. Some players, including Novak Djokovic, reacted with criticism of the process, with Djokovic stating that "the majority of the players feel like there is favouritism happening" and citing the advantages high-ranked players have in accessing rapid legal advice.

7.1. Carlos Alcaraz

Jannik Sinner and Carlos Alcaraz have contested 10 matches since 2021, with Alcaraz currently leading their head-to-head record at 6-4. This rivalry is noted for several high-profile encounters, including the semifinal of the 2024 French Open, which Alcaraz won in five sets. Another memorable clash was the quarterfinal of the 2022 US Open, where Alcaraz prevailed in five sets after saving a match point en route to claiming his first Grand Slam title. Sinner, in turn, secured a notable victory in their semifinal match at the 2023 Miami Open. In 2024, the pair met three times on tour, with Alcaraz winning all three matches, most notably their third encounter at the 2024 China Open.

7.2. Daniil Medvedev

Jannik Sinner and Daniil Medvedev have faced each other 15 times since 2020, with Sinner currently holding a slight lead in their rivalry at 8-7. The early stages of this rivalry were largely dominated by Medvedev, who won their first six matches. However, Sinner dramatically reversed this trend in late 2023 by winning five consecutive matches, eventually leveling their head-to-head record. They have played a number of high-stakes matches, most notably the 2024 Australian Open final, which Sinner won in five sets after being two sets down, securing his first major title. Their paths crossed again in the quarterfinals of 2024 Wimbledon, where Medvedev emerged victorious in five sets, and subsequently in the quarterfinal of the 2024 US Open, which Sinner won in four sets en route to his second major title.

7.3. Novak Djokovic

Jannik Sinner and Novak Djokovic have met eight times, with their competitive history currently tied at 4-4. Their first encounter took place at the 2021 Monte-Carlo Masters. Djokovic won their initial three matches, but Sinner secured his first victory in their fourth meeting at the 2023 ATP Finals. The pair have engaged in several significant contests, including the final of the 2023 ATP Finals, which Djokovic won. Sinner gained a notable win in the semifinal of the 2024 Australian Open, defeating Djokovic in four sets. Their most recent significant match was the final of the 2024 Shanghai Masters, where Sinner triumphed over Djokovic in straight sets.

8.1. Sponsorships and Endorsements

Sinner has attracted numerous high-profile sponsorship deals throughout his career. At the age of 17 in 2019, he signed sponsorship agreements with Nike and Head for his tennis footwear, apparel, and equipment. In 2020, even before breaking into the top 50 ATP rankings, Sinner secured a global ambassador contract with Rolex. Later that year, ranked No. 46, he added Alfa Romeo to his list of sponsors. In 2021, he signed with Intesa Sanpaolo. A significant development occurred in 2022 when Sinner signed a new 10-year, 150.00 M USD sponsorship contract with Nike. That same year, he became a prominent face for luxury brand Gucci and coffee company Lavazza.

In 2023, Sinner forged a partnership with Formula 1, aiming to attract a younger and more diverse audience to the motorsport. In 2024, L'Oréal's skincare brand La-Roche Posay appointed Sinner as their global brand advocate to promote awareness about sun protection. Other notable sponsors include FASTWEB, De Cecco, Panini Comics, Technogym, Enervit, Parmigiano Reggiano, and Pigna.

8.2. Social Contributions and Ventures

Beyond his athletic pursuits, Sinner has engaged in various social initiatives. During the COVID-19 pandemic in 2020, he launched "What's Kept You Moving," a video series featuring interviews with other young athletes discussing how they overcame mental health challenges in sports. In 2022, Sinner became the public face of the "An Ace for Research" initiative dedicated to cancer research. Through this program, he committed to a donation for the purchase of modern lasers for diagnosing cancers in men for every ace he scored in the ATP Finals, later visiting the research laboratories at The Candiolo Cancer Institute.

Sinner also ventured into the investment world in 2022, diversifying his assets through four different companies registered in his place of residence, Monte Carlo. His real estate company holds properties in Corso Venezia in the historic center of Milan. In 2022, Sinner released a comic book titled Piccoli grandi campioni: Il manuale illustrato del tennis di Jannik Sinner (Small Great Champions: Jannik Sinner's Illustrated Tennis Manual) through Panini Comics. This illustrated manual for children features a cartoon version of Sinner explaining tennis fundamentals and offering advice to beginners. In September 2024, Sinner was announced as an ambassador for the volunteer program of the 2026 Winter Olympics in Milan-Cortina.

8.3. Impact in Media and Popular Culture

Sinner's distinctive presence has garnered significant media attention and influenced popular culture. His nickname, "The Fox", has inspired the design of his personal logo. A dedicated group of Italian fans known as the "Carota Boys" (Carrot Boys) has become widely recognized for supporting him at major tournaments worldwide, often dressed in orange carrot costumes.

Sinner has been the subject of intense media scrutiny in Italy and is widely credited with catalyzing a surge in the popularity of tennis across the country, an phenomenon often referred to as the "Sinner Effect." Following his victories at the Davis Cup and Australian Open, Sinner was honored by Italian Prime Minister Giorgia Meloni at Chigi Palace in Rome and met with Italian President Sergio Mattarella. Italy's Minister of Foreign Affairs, Antonio Tajani, officially appointed Sinner as an Ambassador of Sports Diplomacy. Sinner subsequently declined an official invitation, supported by the Prime Minister, to appear at Italy's prestigious Sanremo Music Festival. This decision sparked public debate, with the president of The Italian Tennis Federation publicly advising Sinner against accepting, emphasizing the need to protect him from excessive media exposure and potential "exploitation." In June 2024, he was granted honorary citizenship of Sexten, the town where he grew up. In Italy, Sinner has been notably labeled "the atypical Italian" by various media outlets, a description with which he himself agrees.

During the 2023 Wimbledon Championships, Sinner made headlines when he entered Centre Court carrying a monogrammed beige leather Gucci duffel bag. This action notably broke Wimbledon's strict all-white dress code, making him the first tennis player to do so. The accessory generated widespread media coverage and commentary, with CNN questioning whether Sinner's bag signaled a potential shift in Wimbledon's long-standing traditions.

Sinner has also engaged in media projects. In 2022, he hosted Breaking Points, a video series produced by GQ where he interviewed various sports icons about mental health topics. In 2023, he was featured in GQ's short film series A Hero's Journey, which was also released as a podcast. The Times has described Sinner as "the Gucci model with a shock of red hair and a surprisingly gangly frame." On May 15, 2024, a book titled Diventare Sinner (Becoming Sinner), co-written by Enzo Anderloni, Michelangelo Dell'Edera, and Alessandro Mastroluca in collaboration with the Italian Tennis Federation, was published by Giunti Editore. The book traces Sinner's evolution from a junior ski champion to a professional tennis player and Grand Slam champion. In 2024, Forbes recognized Sinner by naming him on their 30 Under 30 Europe list, and Time included him on their Time 100 Next list.

10.1. Grand Slam Singles Performance Timeline

Current through the 2025 Australian Open

10.2. Major Tournament Finals

10.3. ATP Tour Finals (Singles and Doubles)

10.4. ATP Challenger and ITF World Tennis Tour Finals (Singles and Doubles)

10.5. Head-to-Head Records Against Major Players

Players who have been ranked world No. 1 are indicated in bold.

• Daniil Medvedev: 8-7
• Carlos Alcaraz: 4-6
• Novak Djokovic: 4-4
• Rafael Nadal: 0-3
• Andy Murray: 1-1
• Marin Cilic: 1-0
• Stefanos Tsitsipas: 3-6
• Andrey Rublev: 6-3
• Stan Wawrinka: 4-2
• Alexander Zverev: 3-4
• Alex de Minaur: 10-0
• Gaël Monfils: 5-1
• Hubert Hurkacz: 3-2
• Holger Rune: 3-2
• Grigor Dimitrov: 4-1
• Karen Khachanov: 4-1
• Pablo Carreño Busta: 1-2
• Taylor Fritz: 4-1
• Félix Auger-Aliassime: 0-2
• David Goffin: 2-0
• Denis Shapovalov: 0-1
• Casper Ruud: 3-0
• Tommy Paul: 3-1
• Frances Tiafoe: 4-1

Statistics as of February 5, 2025

12.1. Professional Awards

• ATP Newcomer of the Year - 2019
• ATP Most Improved Player of the Year - 2023
• ATP Fans' Favourite Player (2) - 2023, 2024
• ATP Player of the Year - 2024
• ITF World Champion - 2024

12.2. Media Awards

• Gazzetta dello Sport Italian Sportsman of the Year - 2024

12.3. Orders

• CONI Golden Collar of Sports Merit (Collare d'Oro al Merito Sportivo^Italian) (2) - 2023, 2024

12.4. Special Awards

• Honorary citizen of Sexten (2024)