MINNEAPOLIS -- Alfredo Aceves has been suspended 50 games without pay for a second violation of the Minor League Drug Prevention and Treatment Program. Aceves, currently pitching for Triple-A Scranton/Wilkes-Barre in the Yankees' organization, will serve his suspension effective immediately.

"That's not what you want from your players," manager Joe Girardi said prior to Thursday's game against the Twins at Target Field. "It's something I hope he gets worked out, because I still think he has the ability to help the team. I really do. And hopefully, he gets it worked out."

Aceves, who has tested positive for a drug of abuse each time, has a 31-16 record and a 3.83 ERA in parts of seven seasons in the Major Leagues, and he threw two scoreless innings for the Yankees in the 2009 World Series. The right-hander pitched for the Yankees between '08-10, then went to the rival Red Sox for three seasons, saving a career-best 25 games in '12.

Aceves, 31, signed a Minor League deal with New York at the end of Spring Training and made 10 appearances for the Yankees this season. Aceves logged a 1-2 record and a 6.52 ERA with the Yankees, and he had a 3.49 ERA in seven appearances for Scranton/Wilkes-Barre.