Former heavyweight champion Joseph Parker has maintained that the positive drug test which led to his suspension from boxing was not the result of his own drug use, but rather stemmed from exposure to cocaine used by his nutritionist, according to a statement from UK Anti-Doping (UKAD). The New Zealand-born fighter tested positive for benzoylecgonine, a metabolite that indicates cocaine consumption, after a routine UKAD screening that took place shortly after his unexpected defeat to Fabio Wardley in London on 25 October 2025.
Parker has consistently denied any personal intake of prohibited substances throughout the entire controversy. On Wednesday, he announced that the suspension – which could have stretched up to two years – had been lifted, and he promised to return to the ring in the near future. The following day, UKAD officially confirmed that Parker was cleared to resume his boxing career and released details of the investigation, including the 34‑year‑old’s explanation for the adverse analytical finding (AAF). In a UKAD press release the agency noted: “On 6 March 2026, Mr.
Parker submitted evidence asserting that the AAF was the consequence of his exposure to cocaine administered by the nutritionist he employed in preparation for the 25 October 2025 bout.” The statement added that the nutritionist admitted to being a regular cocaine user and that he had consumed the drug daily during the week leading up to the fight. UKAD further disclosed that between 14 April and 3 June 2026 it requested additional information from Parker regarding his account, and that Parker had first begun working with this nutritionist back in April 2023. UKAD explained that, after reviewing the case, it initially imposed a three‑month period of ineligibility, which it considered already served, because an independent scientific expert concluded that any cocaine ingestion most likely occurred out of competition – meaning it happened before the competition window closed at 23:59 on 24 October 2025. The expert’s opinion, received on 15 June 2026, suggested that the ingestion was unrelated to Parker’s sporting performance.
Consequently, on 22 June 2026 UKAD lifted Parker’s provisional suspension, allowing him to compete immediately, while still recording the three‑month sanction as a served penalty for the anti‑doping rule violation. The scientific expert also entertained the possibility that the cocaine could have entered Parker’s system via contamination. Specifically, the expert stated: “It is my opinion that Mr. Parker’s administration of cocaine may have occurred orally from food contaminated with cocaine by his sports nutritionist, who has admitted to being a user of cocaine, giving rise to the finding of benzoylecgonine in Mr.
Parker’s urine samples.” At the same time, the expert could not rule out that the metabolite detected might represent the tail end of a larger, pharmacologically active dose of cocaine. As a result of the UKAD findings, the outcome of Parker’s fight with Wardley has been altered. The bout, originally recorded as an 11th‑round stoppage victory for the British boxer, is now officially listed as a loss by disqualification for Parker rather than a knockout defeat. This change has significant implications for Parker’s record and his standing in the heavyweight division.
Parker’s career trajectory provides context for the stakes involved. He captured the world heavyweight title in 2018 by defeating Anthony Joshua, but later lost that belt. After a heavy defeat to Joe Joyce in 2022, Parker rebounded impressively, stringing together six consecutive wins, including high‑profile victories over former champion Deontay Wilder and Chinese contender Zhilei Zhang, and securing the WBO interim title. He was slated to challenge IBF champion Daniel Dubois in February, but Dubois withdrew due to illness shortly before the fight.
Instead, Parker chose to risk his mandatory challenger status for the undisputed champion Oleksandr Usyk by taking the fight against Wardley. The gamble did not pay off, and the subsequent doping controversy has added another layer of complexity to his professional narrative. While the suspension has been lifted, the shadow of the disqualification and the lingering questions about the nutritionist’s conduct may influence future negotiations, promotional opportunities, and public perception.
Looking ahead, Parker has expressed a clear intention to return to competition as soon as possible. The lifting of his provisional suspension means he can now train, accept fight offers, and compete without further delay, provided he adheres to any remaining conditions set by UKAD. The case also highlights broader issues within elite sport regarding the responsibilities of support staff, the potential for inadvertent contamination, and the rigorous standards applied by anti‑doping agencies. In summary, Joseph Parker’s positive cocaine test has been attributed to exposure from a nutritionist who admitted regular cocaine use.
An independent expert concluded the ingestion likely occurred out of competition, leading UKAD to deem the three‑month sanction served and to lift his suspension. The fight against Fabio Wardley is now recorded as a disqualification loss, and Parker is poised to re‑enter the heavyweight scene, aiming to rebuild his reputation and pursue further title opportunities.