Minor leaguers Antonio Alvarez and Daryl Thompson were suspended on Thursday for violations of baseball's drug prevention and treatment program.
Alvarez, a shortstop in the Arizona Diamondbacks' organization, received a 50-game suspension after a positive test for testosterone. Thompson, a free-agent pitcher, also was given a 50-game suspension without pay for a second violation of a drug of abuse.
Alvarez's suspension takes effect at the start of the 2014 season. Thompson will begin serving his once he signs with a team.
Last season, Alvarez batted .222 with no home runs and nine RBIs in 35 games with the Missoula Osprey of the rookie Pioneer League. He is still on the Osprey's roster.