Righthander Alvaro Bacil, a Phillies' farmhand, was suspended 50 games by Major League Baseball on Friday for testing positive for a performance-enchancing substance.
Bacil pitched for the organization's Dominican summer league team. The 19-year-old was 2-1 with a 2.70 ERA and two saves.
He tested positive for a metabolite of Boldenone, a performance-enhancing substance, in violation of the Minor League Drug Prevention and Treatment Program.
The suspension is effective at the beginning of next season.