Daniel Cormier is one of the most outspoken anti-doping advocates in the sport, mainly because he’s been subjected to thorough testing for the better part of two decades. From his time as an Olympic-level wrestler to becoming the UFC light heavyweight and heavyweight champion, Cormier (21-1 MMA, 10-1 UFC) has been rigorously drug tested by the U.S. Anti-Doping Agency (USADA)
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UFC dual-champ Daniel Cormier boasts of flawless 17-year drug testing history – MMA Junkie