Overview
- An out-of-competition sample collected on September 8, 2025, in Coral Springs, Florida, tested positive for testosterone.
- Usman later admitted using testosterone before the planned Rio event and acknowledged earlier use of the prohibited peptide BPC-157.
- CSAD deemed his initial false explanation an aggravating factor and added six months to the typical two-year suspension.
- The ineligibility period is backdated to October 9, 2025, and ends on April 9, 2028, aligning with his provisional suspension notice.
- He was removed from an October 11, 2025 fight against Valter Walker, with collection by Drug Free Sport International and analysis at the WADA-accredited SMRTL.