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Jaime Munguia Cleared After False-Positive Testosterone Test as May Win Is Upheld

Governing bodies ruled the May testosterone finding a false positive caused by pregnenolone contamination.

Overview

  • UKAD, the BBBofC and the WBC said there will be no charges or sanctions, confirming Munguia’s eligibility to compete.
  • Both the A- and B-samples initially flagged exogenous testosterone metabolites from a May 4 urine test taken after the Riyadh rematch.
  • Independent reviews cited supplement testing by WADA-accredited SMRTL and hair and nail analysis by Dr. Pascal Kintz to support the contamination finding.
  • WBC president Mauricio Sulaiman said the organization’s protocol investigation determined Munguia was not guilty.
  • Munguia’s unanimous-decision win over Bruno Surace remains on his record, and reporting indicates he aims to return before the end of the year.