Munguia Failed Drug Test: B-Sample Confirmed Positive
- Jaime Munguia, the former junior middleweight titleholder, is in hot water after his B-sample also tested positive for a prohibited substance.
- Munguia's team released a statement tuesday, acknowledging the positive test for exogenous testosterone metabolites.
- Following the initial positive test, Munguia, who holds a record of 45-2 with 35 knockouts, expressed surprise and requested the B-sample analysis.
Jaime Munguia faces Potential Sanctions after failed Drug Test
Updated June 18, 2025
Jaime Munguia, the former junior middleweight titleholder, is in hot water after his B-sample also tested positive for a prohibited substance. The finding follows his unanimous decision win against Bruno Surace on May 4. Now, Munguia faces possible disciplinary action, including having his victory overturned and a suspension that could range from six months to a year.This development casts a shadow over his boxing future and his commitment to clean competition.
Munguia’s team released a statement tuesday, acknowledging the positive test for exogenous testosterone metabolites. They firmly maintain Munguia’s innocence, suggesting the result stemmed from contamination. The team is actively investigating the source of the contamination to clear Munguia’s name and protect his reputation in the boxing world. The role of contamination is now central to Munguia’s defense.
Following the initial positive test, Munguia, who holds a record of 45-2 with 35 knockouts, expressed surprise and requested the B-sample analysis. He stated his willingness to undergo further testing to prove his commitment to being a clean athlete. The boxer’s boxing career now hangs in the balance as he awaits the British boxing Board of Control’s decision.
The situation highlights the importance of sports integrity and the rigorous testing protocols in place to ensure fair competition.
“We want to reiterate that this outcome does not change our position: Jaime did not knowingly or intentionally ingest any banned substance,” his team said.
“I have spent my entire career and life doing things the right way — and this is no exception,” Munguia said.
What’s next
Munguia will now await the British Boxing Board of Control’s ruling, which will determine the extent of his punishment. His team plans to continue investigating the source of the contamination to clear his name and allow him to return to the ring as soon as possible.