GOODYEAR, Ariz. -- Indians minor league catcher Steven Lebron was suspended for 50 games for testing positive for the steroid Boldenone metabolite.

Lebron, a member of the Indians Dominican Summer League team, was signed in January. His contract was voided at no cost to the Indians.

Three other minor leaguers tested positive: Mets pitcher Melvin Colon and Yankees catcher Josue Rodriguez and pitcher Israel Tolentino. They were suspended for 50 games.

Boldenone is a steroid used on horses. It's a favorite of body builders as they prepare for competition. It is also banned by MLB.

All four suspensions will be effective at the start of the 2010 Dominican Summer League season in May.