Marcus Stroman, Toronto's first-round pick in this past June's First-Year Player Draft, has been suspended 50 games by Major League Baseball for violating the game's drug prevention and treatment program.

Playing for Class-A Vancouver, Stroman tested positive for methylheaneamine.

"Despite taking precautions to avoid violating the minor league testing program, I unknowingly ingested a banned stimulant that was in an over-the-counter supplement," Stroman said in a statement.

"Nonetheless, I accept full responsibility and I want to apologize to the Toronto Blue Jays organization, my family, my teammates, and the Blue Jays fans everywhere. I look forward to putting this behind me and rejoining my teammates."

After drafting him with the 22nd overall pick, Toronto signed him to a $1.8-million bonus.