USADA announced today that UFC® athlete Jim Wallhead, of Loughborough, United Kingdom, accepted a nine-month sanction after testing positive for a prohibited substance from a contaminated supplement.
Wallhead, 33, tested positive for ostarine and its metabolite following an out-of-competition test conducted on October 7, 2017. Ostarine is a non-Specified Substance in the class of Anabolic Agents and prohibited at all times under the UFC Anti-Doping Policy, which has adopted the World Anti-Doping Agency Prohibited List.
Ostarine, also known as MK-2866 and Enobosarm, is a non-FDA approved selective androgen receptor modulator (SARM) that is illegally sold worldwide as a performance-enhancing substance.