Oakland Athletics pitcher Bartolo Colon has been suspended 50 games by Major League Baseball for testing positive for testosterone, according to report.

Colon has been solid for the A's in 2012, posting a 10-9 record with a 3.43 ERA, 1.21 WHIP and a 23/91 BB/K ratio in 152.1 innings pitched for Oakland.

Colon had a resurgent 2011 season after he underwent a controversial stem-cell treatment in his pitching elbow, leading him to post a 8-10 record with a 4.00 ERA with the New York Yankees. He was completely out of professional baseball in 2010.

Just last week, San Francisco Giants outfielder Melky Cabrera tested positive for testosterone as well, getting the same 50-game ban.

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