Brock Lesnar is shown before his match against Mark Hunt at UFC 200. Both actions stemmed from failed tests by Lesnar while in training for, and then on the day of, UFC 200 in July. In both cases, the former UFC heavyweight champion tested positive for the banned substance clomiphene. Lesnar first retired from MMA after losing to Alistair Overeem at UFC 141 in 2011, citing an ongoing battle with diverticulitis. He began his MMA career in 2006 and won the UFC heavyweight title in 2008 by defeating Randy Couture.

Source: Washington Post February 15, 2017 03:00 UTC