Jaime Munguia Tests Positive for Synthetic Testosterone After May 4 Win

Mexican boxer Jaime Munguia tested positive for exogenous testosterone metabolites following his unanimous decision win over France's Bruno Surace on May 4, leading to an adverse finding from the Voluntary Anti-Doping Association (VADA). Munguia has proclaimed his innocence, emphasizing his history of negative tests and willingness to undergo further testing to prove he is a clean athlete, while acknowledging contamination as a possible explanation. If Munguia's B-sample also returns positive, the victory is likely to be overturned to a no-contest and he may face suspension. Surace, who previously defeated Munguia by knockout, called for the result to be overturned immediately, accusing Munguia of cheating. The rematch was Munguia's first fight under renowned trainer Eddy Reynoso, who has come under scrutiny amid the controversy. The incident occurred on the undercard of Canelo Alvarez's super middleweight title unification fight in Riyadh, with the boxing community closely watching the developments and potential implications for Munguia's career.