Michel Prazeres Accepts Sanction for Violation of UFC Anti-Doping Policy

Colorado Springs, Colo. – USADA announced today that Michel Prazeres of Belém, Brazil, has accepted a two-year sanction for a violation of the UFC® Anti-Doping Policy after testing positive for a prohibited substance. 

Prazeres, 38, tested positive for exogenous boldenone and its metabolite 5β-androst-1-en-17β-ol-3-one as the result of two out-of-competition urine samples he provided on March 9, 2019. Confirmation of the positive test was achieved through additional analysis using the sensitive isotope ratio mass spectrometry (GC/C/IRMS) method, which reported laboratory results consistent with the exogenous origin of boldenone. Boldenone is a non-Specified Substance in the class of Anabolic Agents and is prohibited at all times under the UFC Anti-Doping Policy and UFC Prohibited List.

Prazeres’ two-year period of ineligibility began on March 9, 2019, the date his positive samples were collected.