UFC heavyweight Mohammed Usman suspended 30 months for testosterone use, ‘attempt to deceive CSAD with a false explanation’
Mohammed Usman accepted a 30-month doping suspension after testing positive for testosterone prior to a UFC Rio bout with Valter Walker in October 2025, Combat Sports Anti-Doping (CSAD) announced Friday.
According to the anti-doping agency, which oversees the drug testing in the UFC, Usman admitted the use of testosterone before the Walker fight and in the past, as well as the use of banned peptide BPC-157 earlier that year. The sample was collected on Sept. 8, and the result came back days before UFC Rio, so Walker was left without an opponent.
“While Usman ultimately took responsibility for the above details,” CSAD stated in a release. “He did not do so in a timely fashion and not until CSAD confronted him with evidence they had independently collected during a detailed investigation of his use of these multiple prohibited substances as well as his attempt to deceive CSAD with a false explanation.”
According to the agency, “if a UFC athlete uses multiple substances like Usman did and engages in deceptive or obstructive conduct to avoid the adjudication of an Anti-Doping Policy Violation like he did, then aggravating circumstances are determined to exist.” Therefore, CSAD decided it was “appropriate” to add six months to the standard 2-year suspension “for these aggravating factors.”
The younger brother of ex-UFC champion Kamaru Usman, and winner of the 30th season of The Ultimate Fighter, “The Motor” will be 39 when his suspension ends in April 9, 2028. Usman last fought in June 2025, when he won a decision over Hamdy Abdelwahab to bring his promotional record to 4-2.
