Career
He has played in Major League Baseball (MLB) for the Toronto Blue Jays. In 2006, his first year at Single A, Pérez went 4–0 with a 1.38 European Research Area. During his tenure in the minors he had a 12–15 record with a 2.99 European Research Area in his first 3 seasons (2006–2008). On April 15, 2011 Pérez got his first call up to the Toronto Blue Jays.
After making 29 appearances out of the bullpen for the Blue Jays, Pérez made his first career start against the Oakland Athletics on August 21, 2011.
He struck out 4 batters and retired 15 straight batters to open the game. The 16 inning game was the longest game in Opening Day history.
After pitching to a 2-2 record with a 3.43 European Research Area in 35 relief appearances, Pérez was removed from a game against the Chicago White Sox on July 8. After the game it was determined that Pérez had torn his ulnar collateral ligament, and missed the rest of the 2012 season.
On May 7, 2013, it was reported that Pérez was expected to return faster than the usual one year recovery time associated with Tommy John surgery.
Pérez was added to the Dunedin Blue Jays roster for a rehab assignment, and pitched two innings in relief on June 10. His rehab assignment was changed to the Triple-A Buffalo Bisons on August 28. He was activated from the 60-day disabled list by the Blue Jays on September 3 after the Bisons season ended, and the major league rosters expanded.
Pérez made his first appearance of the 2013 season on September 4.
Pérez had surgery on his left elbow in January 2014 to remove scar tissue. On March 20, 2014, he was released by the Blue Jays to make room for Matt Tuiasosopo.
Pérez signed a minor league deal with the Atlanta Braves on March 31, 2014. Still recovering from his elbow injuries, he would not throw a single pitch for Atlanta"s minor league affiliates, and became a free agent at the end of the 2014 season.
On February 6, 2015, Pérez signed a minor league contract with the Blue Jays that included an invitation to spring training.
After the 2015 season, Pérez signed a one-year, $450,000 contract with the Tokyo Yakult Swallows.
