Vitor Belfort Reveals Failed February NAC Drug Test due to Elevated Testosterone

UFC middleweight contender Vitor Belfort on Friday admitted to failing a random drug test administered by the Nevada Athletic Commission (NAC) in February.
http://www.sherdog.com/news/news/Vitor-Belfort-Reveals-Failed-February-NAC-Drug-Test-due-to-Elevated-Testosterone-68855