UFC light heavyweight champion Jon Jones has failed a drug test for steroids, a UFC official today told MMAjunkie. The UFC later confirmed the news in a statement on its web site. The UFC organization was notified today that the U.S. Anti-Doping Agency (USADA) has informed Jon Jones of a potential Anti-Doping Policy violation stemming from an in-competition sample collected following his weigh-in on July 28, 2017
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Jon Jones notified of potential doping violation in wake of UFC 214 title win – MMA Junkie