Luis Avilán, a left-handed pitcher from Venezuela, made his Major League Baseball debut with the Atlanta Braves. His journey to the majors began when he signed with the Braves as an amateur free agent in 2005. Avilán spent several years honing his skills in the minor leagues before getting his first call-up to the big leagues.

Avilán's debut came in 2012, and he quickly established himself as a reliable option out of the bullpen. Known for his effective use of a fastball-changeup combination, he was particularly adept at handling left-handed hitters. During his time with the Braves, Avilán became a valuable asset in the bullpen, contributing to the team's efforts in late-inning situations.

In 2015, Avilán was traded to the Los Angeles Dodgers as part of a three-team deal. With the Dodgers, he continued to perform well, maintaining a solid ERA and providing depth to the bullpen. His tenure with the Dodgers saw him participating in several postseason runs, where he gained experience on the big stage of playoff baseball.

Avilán's career continued with a move to the Chicago White Sox in 2018, where he was part of a trade that sent him and Joakim Soria to Chicago in exchange for prospects. His stint with the White Sox was followed by a trade to the Philadelphia Phillies later that same year. With the Phillies, Avilán continued to be utilized as a situational left-hander, a role he had become accustomed to throughout his career.

In 2019, Avilán signed with the New York Mets, where he spent a season contributing to their bullpen. His time with the Mets was marked by consistent performances, although injuries limited his appearances. Despite these challenges, Avilán remained a dependable option when healthy.

The following year, Avilán joined the New York Yankees, but his season was cut short due to injury. He underwent Tommy John surgery, which sidelined him for the remainder of the season and into the next. Despite this setback, Avilán's career was characterized by his ability to adapt and perform in various bullpen roles across multiple teams.

Throughout his career, Avilán was known for his ability to neutralize left-handed batters, making him a valuable asset in match-up situations. His journey through the major leagues was marked by several team changes, but his skill set ensured that he remained a sought-after pitcher for teams looking to bolster their bullpen depth.