ARLINGTON -- Outfielder Jake Skole, who was the 15th overall pick in the 2010 First-Year Player Draft, has been suspended for 50 games in violation of the Minor League Drug Prevention and Treatment program.

The Commissioner's Office announced that Skole tested positive for an amphetamine, a performance-enhancing substance. The positive result came down a few weeks ago and Skole appealed it. The suspension was handed down on Friday.

"It is what it is," general manager Jon Daniels said. "He made a mistake. That's what the system is for. He'll serve his punishment."

Skole is hitting .185 with three home runs and 18 RBIs in 68 games at Class A Myrtle Beach. He is 1-for-37 in his past 12 games. The Rangers drafted him out of Blessed Trinity High School in Roswell, Ga. He is expected to serve his suspension at the Rangers' training facility in Surprise, Ariz.

"It's probably affected his play overall the last few weeks," Daniels said. "He's struggled while it's been on his mind. That's the challenge for Jake -- to make the best use of his time on and off the field, physically and mentally. The talent is there. He's had a rough year between the lines, and this. This is an opportunity for him to get things right."