Brock Lesnar, UFC Informed of Potential Doping Violation Mike Kannianen July 15, 2016 News, Spotlight, UFC Photo courtesy of comicvine.gamespot.com The 39-year-old UFC and WWE veteran, Brock Lesnar was informed of a potential out of competition testing violation from June 28th, 2016, per Brett Okamoto of ESPN. USADA ( United States Anti-Doping Agency) found Jon Jones to be in violation of the PED policy (the specific substance has yet to be confirmed, but UFC veteran Chael Sonnen has suggested estrogen blockers) during fight week. The UFC chose to replace him with the legend and known-doper Anderson Silva. Silva had just recently returned to action off of his own PED relate suspension to lose to now-middleweight champion Michael Bisping. Be sure to check back with The MMA Corner for more information as it becomes available.