Two minor league pitchers, Luis Custodio and Luis Sierra, have each been handed a suspension of 56 games due to positive drug tests, as announced by Major League Baseball (MLB) on Monday. The suspensions stem from violations of the minor league drug program applicable to players outside the United States and Canada, with both players testing positive for the anabolic steroid Stanozolol.
Luis Custodio, a 21-year-old left-handed pitcher, recorded a 2-1 record with a 7.94 ERA during 12 relief appearances last year for the San Francisco Giants‘ affiliate team, Giants Black, in the Dominican Summer League. Custodio signed with the Giants in 2023 following recovery from Tommie John surgery, which had sidelined him prior to his signing.
In a separate case, Luis Sierra, a 20-year-old right-handed pitcher, was signed by the Baltimore Orioles last June for a bonus of $10,000. Sierra struggled during his time in the Dominican Summer League, finishing with an 0-2 record and a 9.95 ERA across 11 relief appearances. He was released from the organization on January 5, 2025, and his suspension will commence once he signs with another major league organization.
The announcement marks a concerning trend in minor league baseball, as this is the third suspension issued this year for positive drug tests. Notably, free agent outfielder Max Kepler was also suspended for 80 games under the major league program after testing positive for Epitrenbolone.
As MLB continues to enforce its drug policy, the impact on players’ careers remains significant. The league’s commitment to maintaining integrity and fairness underscores the importance of adherence to the established guidelines for all athletes.
