Mike Jacobs becomes the first professional baseball player to be suspended for testing positive for human growth hormone. The 30 year-old Rockies minor league first baseman, who has played for the Mets, Marlins, and Royals, is handed a 50-game suspension for his involvement with HGH.

On August 18, 2011 — Mike Jacobs becomes the first professional baseball player to be suspended for testing positive for human growth hormone. The 30 year-old Rockies minor league first baseman, who has played for the Mets, Marlins, and Royals, is handed a 50-game suspension for his involvement with HGH.

Source:
Baseball Reference August 18
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