Heavyweight Boxing
London, England, UK -Former WBO heavyweight champion Joseph Parker returned an adverse analytical finding for a recreational drug metabolite in a test administered on the day of his October 25 bout with Fabio Wardley, according to multiple reports. The result, detected by the Voluntary Anti-Doping Association (VADA), has been formally referred to UK Anti-Doping (UKAD) and the British Boxing Board of Control (BBBoC) for further review.

The finding concerns benzoylecgonine, a metabolite associated with cocaine. It is classified as a non-performance-enhancing, recreational substance, but its presence on or near competition day is prohibited under anti-doping rules. Parker, 33, was stopped by Wardley in the eleventh round of their contest at The O₂ in London.
Queensberry Promotions confirmed awareness of the result and stated that the matter will go through the appropriate regulatory process. Parker is entitled to request analysis of the B-sample, and no final determination has been made.
Recreational substances are treated differently from performance-enhancing drugs under UKAD guidelines. Typical sanctions in such cases vary widely depending on:
Possible outcomes range from educational measures up to a two-year competition ban, depending on the findings of the investigation and any hearings that follow. At this stage, no ruling has been issued, and Parker has not made a public statement regarding the result.
The news arrives shortly after Parker’s spirited performance in a dramatic fight against Wardley, where he led on the scorecards before being stopped late. It also comes during a period in which Parker had rebuilt considerable momentum with victories over Zhilei Zhang, Deontay Wilder, and Martin Bakole.
This development does not alter the result of the Wardley bout, but it places a cloud over Parker’s immediate competitive future as the anti-doping process unfolds. Importantly, the substance involved is not considered performance enhancing, and nothing in the reported findings suggests competitive manipulation.
For a fighter widely respected for professionalism throughout his career, this is an unexpected and unfortunate moment.
With the heavyweight division already in transition, Parker’s situation adds another layer of uncertainty. If a suspension is imposed, Parker’s ranking position and path back to major fights will likely be paused. Wardley’s victory stands unaffected, and the WBO interim title picture continues forward.
At this stage, the division simply awaits clarity from UKAD and the BBBoC.
Recreational-substance cases often involve personal rather than sporting issues, and the regulatory response typically recognizes this distinction. Parker has been a respected figure in the sport for more than a decade, and the appropriate course now is to allow the process to run without speculation.
More information will become available when UKAD completes its review and issues its findings. Until then, nothing final can be concluded.