Miguel Ángel Castro Bio
Miguel Ángel Castro is a Dominican professional baseball pitcher who is currently a free agent. He has spent time in Major League Baseball with the Toronto Blue Jays, Colorado Rockies, Baltimore Orioles, New York Mets, New York Yankees, Arizona Diamondbacks, and Chicago White Sox, and he is currently signed with the Leones de Yucatán of the Mexican League. A right-handed reliever known for his strikeout ability, Castro signed with the Blue Jays as an international free agent in 2012 and made his MLB debut in 2015.
Miguel Ángel Castro Early Life and Background
Miguel Ángel Castro was born on December 24, 1994, in La Romana, Dominican Republic. He grew up in a family shaped by athletics, as his father was a boxer. That sporting background gave Castro an early familiarity with competition and physical conditioning, traits that would later help him transition to baseball as a young teenager in the Dominican Republic’s vibrant baseball culture.
Castro’s family faced serious medical challenges during his youth. When he received his $43,000 signing bonus from the Toronto Blue Jays in 2012, he used a portion of the money to pay for his father’s prostate operation and his mother’s surgery to remove a fibrous tumor. The decision reflected the close family bonds that have remained a central part of his personal story.
Path to Baseball
Castro’s route to professional baseball began in 2012 when he signed with the Toronto Blue Jays as an international free agent. He made his professional debut that same year with the Dominican Summer League Blue Jays, where he posted a 3-2 record with a 4.73 earned run average and 20 strikeouts in 20 and one-third innings. His work in the DSL earned him the Webster Award, given to the top Blue Jays prospect at each minor league level.
In 2013, Castro moved through multiple levels of the Blue Jays’ developmental system, including the Gulf Coast League Blue Jays and the Bluefield Blue Jays. He finished that year with a 6-2 record, a 1.54 ERA, and 88 strikeouts across 70 innings. By 2014, he had earned promotions to the Vancouver Canadians, Lansing Lugnuts, and Dunedin Blue Jays, producing an 8-3 record with a 2.69 ERA and 78 strikeouts in 80 and one-third innings. Those performances convinced the Blue Jays to invite him to major league spring training in 2015.
Miguel Ángel Castro Career
Toronto Blue Jays (2015)
Castro entered Blue Jays spring training in 2015 as a long shot to make the Opening Day roster. After pitching six and two-thirds scoreless innings across four appearances with four strikeouts and no walks, he forced his way onto the team as a reliever. He made his MLB debut on April 6, 2015, against the New York Yankees, pitching one and one-third innings and closing out a 6-1 win. At 20 years and 103 days old, he became the youngest pitcher to appear for the Blue Jays, breaking a nearly 38-year-old record held by Víctor Cruz, though teammate Roberto Osuna broke his mark two days later.
Castro briefly took over the closer role on April 9, 2015, after Brett Cecil struggled, and he earned his first MLB save that night in a 6-3 win over the Yankees. He recorded four saves in six chances before being moved back into a standard relief role on April 28. On May 3, the Blue Jays optioned him to the Triple-A Buffalo Bisons.
Colorado Rockies (2015-2016)
On July 28, 2015, Castro was traded to the Colorado Rockies as part of the package that sent Troy Tulowitzki and LaTroy Hawkins to Toronto, joining José Reyes, Jeff Hoffman, and Jesús Tinoco in the deal. The Rockies optioned him to the Triple-A Albuquerque Isotopes before calling him up on September 1, 2015, for his Rockies debut. On April 2, 2017, Colorado designated him for assignment.
Baltimore Orioles (2017-2020)
On April 7, 2017, the Orioles acquired Castro from the Rockies for cash considerations. He debuted for Baltimore on May 17, 2017, against the Detroit Tigers, striking out one batter in a scoreless inning. In his first season with the Orioles, he posted a 3.53 ERA across 39 games. The following season, he appeared in 63 games and logged a 3.96 ERA in 86 and one-third innings, tying for the major league lead with three balks. In 2019, he made 65 appearances, allowing a career-high 10 home runs over 73 and one-third innings and finishing with a 4.66 ERA.
New York Mets (2020-2022)
The Orioles traded Castro to the New York Mets on August 31, 2020, in exchange for pitcher Kevin Smith and a player to be named later. Across 26 combined games with Baltimore and New York in the shortened 2020 season, he recorded a 4.01 ERA with 38 strikeouts in 24 and two-thirds innings. In 2021, he set a career-low 3.45 ERA with 77 strikeouts and 43 walks in 70 and one-third innings. On March 22, 2022, he signed a $2.62 million contract with the Mets, avoiding salary arbitration.
New York Yankees (2022)
On April 3, 2022, the Mets traded Castro to the New York Yankees for Joely Rodríguez. He landed on the 60-day injured list on August 1 with a right shoulder strain and was activated on October 3. In 34 games with New York, he posted a 4.03 ERA with 31 strikeouts in 29 innings.
Arizona Diamondbacks (2023-2024)
Castro signed a one-year contract with the Arizona Diamondbacks on December 2, 2022, that included an option for 2024. In 2023, he led the major leagues with 75 appearances, recording a 4.31 ERA, 60 strikeouts, and 7 saves across 64 and two-thirds innings. In 2024, he struggled to a 5.93 ERA in 11 appearances before the Diamondbacks designated him for assignment on July 30 and released him the following day.
Chicago White Sox (2025)
After signing a minor league deal with the Houston Astros on December 30, 2024, and pitching for the Triple-A Sugar Land Space Cowboys, Castro was traded to the Chicago White Sox on May 15, 2025, in exchange for international bonus pool space. He made six appearances for Chicago, posting a 7.50 ERA with four strikeouts in six innings. On May 28, he suffered a season-ending knee injury after slipping on first base while covering on a ground ball against the New York Mets, and the injury was later revealed to be a torn patellar tendon.
Notable Events and Milestones
One of the defining moments of Castro’s career came on April 6, 2015, when he broke a nearly 38-year-old Blue Jays record as the youngest pitcher to appear for the franchise. He also tied for the major league lead in balks during the 2018 season, and in 2023, he led all of MLB with 75 appearances for the Arizona Diamondbacks, a workload that highlighted his durability in high-leverage relief work.
Miguel Ángel Castro Family
Family Background and Racing Lineage
Castro’s family has deep roots in athletics. His father was a boxer, and that combat sports background helped shape Castro’s competitive mindset from a young age. His commitment to family has been a defining part of his story, including his decision to use a portion of his first professional signing bonus to cover medical procedures for both of his parents.
Personal Life
Miguel Ángel Castro was raised in La Romana, Dominican Republic, where he still maintains close ties to his parents. The personal sacrifices he made early in his career, including paying for his father’s prostate operation and his mother’s fibrous tumor surgery, have been widely noted as evidence of his character and devotion to his family.
2025 Season Performance
Castro’s 2025 season was a turbulent one defined by movement between organizations. He opened the year in the Houston Astros system with the Triple-A Sugar Land Space Cowboys, where he excelled with a 3-0 record, a 2.29 ERA, 20 strikeouts, and five saves across 17 appearances, earning a promotion back to the majors. Traded to the Chicago White Sox on May 15, 2025, he made six appearances before suffering a season-ending torn patellar tendon on May 28 while covering first base against the New York Mets.
The injury ended his major league campaign in Chicago and opened the next chapter of his career. On January 15, 2026, Castro signed a minor league contract with the Los Angeles Angels, though the deal fell through by February 11. On February 13, 2026, he signed with the Leones de Yucatán of the Mexican League, joining the club as it continued its winter and summer seasons. The move gave Castro a path back to the field as he continued his recovery and worked toward a potential return to affiliated baseball.