Eric Pérez

2.1. International Wrestling Association and World Wrestling Council (2000-2005)

Pérez started his career in the International Wrestling Association (IWA) in Puerto Rico, undergoing training with the company's personnel. His initial storyline in the IWA saw him as the leader of a group of young wrestlers called Lucha Libre 101, which originally included Bryan Madness (Roberto Rubio), Chicano (Carlos Cotto), and Abbad (Enrique Sinigaglia). This angle was eventually cancelled due to injuries and departures of several members. Following this, he briefly hosted a talk show segment, a role he ultimately passed to Daniel Garcia Soto before traveling to Mexico.

While with the IWA, Pérez also worked for the Federal government of the United States, which restricted his availability for wrestling performances. After seven months in this role, he attempted to negotiate a more flexible schedule with IWA management but was unable to reach them, leading him to request a release from the company. A few months later, a fellow wrestler contacted him about working with the World Wrestling Council (WWC), facilitating a meeting with WWC Vice President Carlos Colón, Sr.. Pérez described his experience with WWC as positive, albeit rigorous due to the company's high standards. During his time in the IWA, he also wrestled in the United States with !Bang!, a promotion owned by Dory Funk Jr., competing against wrestlers like Brent Dail and various !Bang! champions. He subsequently won multiple titles during his tenure with the World Wrestling Council.

2.2. World Wrestling Entertainment (2005-2010)

In September 2005, Eric Pérez signed a developmental contract with World Wrestling Entertainment (WWE), marking a significant step in his career. He would spend time in WWE's developmental territories before moving to the main roster.

2.3. Independent Circuit (2010-2012)

Following his release from WWE, Eric Pérez promptly returned to the Puerto Rican independent circuit, making his comeback to the World Wrestling Council (WWC) on January 30, 2010. He performed under the ring name "Mr. Escobar," a character that built upon his previous WWE gimmick. Immediately upon his return, he was embroiled in a feud with Ray González and Black Pain, forming a tag team with Orlando Colón. However, his activity in WWC became intermittent after Orlando Colón departed to work in FCW. During this period, Pérez also wrestled in Florida, debuting in American Combat Wrestling where he defeated ACW Kombat Champion Kennedy Kendrick, and later working for Combat Championship Wrestling.

Pérez returned to the WWC for their annual "Camino a la Gloria" event, initiating a feud with BJ (Benjamín Jiménez). On April 24, 2010, he participated in an inconclusive Three Way Dance to determine the number one contender for the Universal Championship. An incident on May 29, 2010, saw Pérez physically respond to a member of the audience who provoked him, leading to further inactivity within the promotion.

On December 5, 2010, at the Xmas in PR event, Pérez made a significant return to the IWA alongside Roberto Rubio. They attacked the IWA World Heavyweight Champion Dennis Rivera, with Pérez delivering a "Sky High" maneuver. On January 6, 2011, at Histeria Boricua, Pérez challenged and defeated Rivera to win the Undisputed World Heavyweight Championship for the first time. He then entered a feud with Tua throughout the first three months of 2011, which concluded at Juicio Final, where he lost the championship. After this event, Pérez was largely off-screen for several months, occasionally updating fans on the IWA's Facebook page. His final appearance in this IWA run was in August 2011, where he delivered a heel promo criticizing the audience.

Pérez left the IWA in the fall of 2011 due to unspecified monetary disagreements and subsequently joined the Puerto Rico Wrestling Alliance (PRWA), a regional independent promotion. As Escobar, he achieved further championship success, winning the PRWA World Heavyweight Championship on December 17, 2011, by defeating Richard Young. He successfully defended the title against Michael Tarver in March 2012. However, his championship reign ended on May 26, 2012, when he dropped the title in a four-way match that also included Matt Hardy.

2.4. World Wrestling League (2013-2015)

In January 2013, Eric Pérez was reintroduced by Hugo Savinovich as "Mr. E," marking his involvement with the new World Wrestling League (WWL) in Puerto Rico. He reformed his tag team with Roberto Rubio, and they adopted the "Los Mamitos" gimmick, portraying Latin lovers and quickly becoming prominent talents in the promotion. Their first major feud was against Los Mega 10, a team composed of Wrestling Alliance Revolution (Ecuador) and Revolution X-Treme Wrestling (Panama) champions, Panama Jack Daniels 10 and El Mega Star. Their initial encounter at Idols of Wrestling ended in a double disqualification as both teams continued to brawl outside the arena.

The WWL's partnership with Lucha Libre AAA Worldwide led to Los Mamitos participating in a four-way match for the AAA World Tag Team Championship at Triplemanía XXI. In that match, they eliminated Jack Evans and Angélico before being eliminated themselves. Following this event, Los Mamitos became involved in the initial stages of a feud with Los Perros del Mal.

Their next major challenge was a four-way elimination contest to crown the first-ever WWL World Tag Team Champions. Los Mamitos triumphed, defeating the teams of Eita and Tomahawk, El Hijo de Kato Kung Lee and Vengador Radioactivo, and Heddi Karaoui & Zumbi. Notably, AAA World Heavyweight Champion Dr. Wagner, Jr. and his son, Hijo de Dr. Wagner, were originally scheduled for the match but did not appear without explanation. On September 6, 2013, Los Mamitos successfully defended their newly won titles against the AAA World Tag Team Champions, The Mexican Powers (Crazy Boy and Joe Líder). Two days later, they faced Germán Figueroa and Joe "Hercules" Gómez in a three-way match that also included The Mexican Powers. Although Los Mamitos lost the match, WWL General Manager Rico Casanova ruled that the titles would not change hands because Pérez had his boot on the ropes during the pinfall count.

On March 7, 2014, Los Mamitos retained their titles against La Dinastía Máscaras (Sicodelico, Jr. and Hijo de Dos Caras). During this match, Rubio unmasked Sicodelico, Jr., using the distraction to secure the pinfall. A rematch two days later resulted in a double count-out. On October 18, 2014, at the Insurrection event, Los Mamitos lost the WWL World Tag Team Championship to Thunder and Lightning. While WWL and WWC had a working agreement, Pérez made appearances in WWC, where he performed under a mask as "The Alien," managed by José Huertas González.

After Roberto Rubio sustained an injury, Pérez reverted to his former ring name of Escobar and was involved in a storyline portraying him as mentally unstable. On January 6, 2015, Pérez became a key member in the creation of the heel faction known as The Gentlemen's Club. Despite Rubio's return, the Los Mamitos gimmick was retired, and both wrestlers reverted to their previous ring names. The group then engaged in a feud with La Rabia, led by Dennis Rivera, and secured a victory in a trios match the following month at Rebelión En El Sur. On March 21, 2015, Pérez participated in the International Cup tournament, where he emerged victorious after defeating Shane Sewell in the final to claim the trophy. His path to the final included earlier victories over a cruiserweight wrestler in the opening round and Roger Díaz in the semifinal.

On August 16, 2015, Pérez appeared at the Sin Piedad event but did not wrestle. Instead, he attacked IWRG Rey del Ring Ricky Cruz and absconded with Cruz's title. Later during the same event, he offered counsel to "Wonderful" Xander (Alexander Ortiz) and joined the rest of The Gentlemen's Club in a turn against Negrín. At Wrestlefest, Cruz defeated Pérez in their first encounter, convincing the referee that a foreign object had been used, but Pérez still managed to retain possession of the title. At this event, Pérez formed an alliance with Hijo de Dos Caras and recruited Xander for unspecified reasons.