Joseph Parker Cleared to Fight After UK Anti-Doping Accepts Nutritionist’s Cocaine Use Explanation

Former world heavyweight boxing champion Joseph Parker has been cleared to resume his career after British anti-doping authorities accepted his explanation that traces of cocaine found in his system originated from his nutritionist’s drug use, not from intentional ingestion. The New Zealander had been provisionally suspended following a positive urine test conducted after his October 25, 2025, bout against Fabio Wardley at London’s O2 Arena, where Parker suffered a defeat.

UK Anti-Doping (UKAD) announced on Thursday that it had imposed a three-month ban on Parker, which was considered already served due to his suspension since late November 2025. The organization lifted the provisional suspension after concluding that any cocaine ingestion occurred out-of-competition and was unrelated to sport performance, noting that cocaine is only prohibited during competition periods.

Parker maintained throughout the investigation that he did not knowingly or intentionally consume cocaine. Instead, he attributed the positive test result to contamination from his nutritionist, who admitted to regular cocaine use. UKAD’s decision referenced a written statement from the nutritionist, who acknowledged daily cocaine use from October 17 to 24, 2025, in his hotel room where he also prepared Parker’s meals and drinks.

An independent scientific expert consulted by UKAD supported Parker’s account, concluding that the boxer’s cocaine ingestion likely occurred orally through contaminated food or drink prepared by the nutritionist. The expert emphasized that the ingestion took place out-of-competition, reinforcing the argument that Parker’s positive test did not violate anti-doping rules applicable during competition.

In June, UKAD informed Parker that it was satisfied with the expert’s opinion and the evidence provided, leading to the lifting of his provisional suspension. The three-month ban was then officially imposed, with Parker accepting the ruling on July 28. Following the decision, Parker announced on social media that he would return to the ring soon.

Parker’s career highlights include winning the vacant WBO heavyweight title in December 2016 by defeating Andy Ruiz Jr. via majority decision. He later lost the title to Anthony Joshua in March 2018 at the Principality Stadium in Cardiff. The recent controversy had cast uncertainty over the latter stages of his boxing career, but the resolution allows him to pursue further opportunities in the sport.

This development marks a significant moment for Parker, who had consistently denied any wrongdoing and sought to clear his name amid the doping allegations. UKAD’s acceptance of the contamination explanation underscores the complexities involved in anti-doping investigations, particularly when third-party contamination is a factor. Parker’s team had provided extensive evidence to support his claim, which ultimately influenced the agency’s decision to reinstate him.

As Parker prepares to return to competition, the case highlights the importance of rigorous scrutiny in doping cases and the potential impact of support personnel’s conduct on athletes. The boxer’s future matches and career trajectory will now proceed without the shadow of suspension, allowing him to focus on his performance in the ring once again.