AJ Ramos is a former professional baseball player who played as a relief pitcher in Major League Baseball (MLB). He was born on September 20, 1986, in Lubbock, Texas, and attended Texas Tech University, where he played college baseball for the Texas Tech Red Raiders.

Ramos was drafted by the Miami Marlins in the 21st round of the 2009 MLB draft. He made his MLB debut on September 4, 2012, for the Marlins. He played for the Marlins from 2012 to 2017, where he was a key member of the bullpen. He recorded 92 saves and had a 2.78 ERA in 328 appearances for the Marlins.

In July 2017, Ramos was traded to the New York Mets, where he played for the remainder of the 2017 season. He continued to be a reliable reliever for the Mets, recording 27 saves and a 3.44 ERA in 111 appearances.

Ramos missed the entire 2019 season due to a shoulder injury, and he signed a minor league contract with the Los Angeles Dodgers in January 2020. However, he was released by the Dodgers in July 2020 without appearing in a game for the team.

In February 2021, Ramos signed a minor league contract with the Los Angeles Angels. He made his debut for the Angels on May 4, 2021, and appeared in 10 games for the team before being designated for assignment on June 4, 2021. He was released by the Angels on June 8, 2021.

Throughout his career, Ramos was known for his unique delivery, which involved a high leg kick and a quick arm motion. He was also known for his ability to induce ground balls and strikeouts, as well as his competitive spirit on the mound.

Overall, Ramos had a successful career as a relief pitcher in MLB, recording 119 saves and a 3.07 ERA in 396 appearances. He was a two-time All-Star in 2016 and 2018 and was a valuable member of the bullpen for the Marlins and Mets.