Joseph Parker has launched an appeal against his failed post-fight drug test, even as the British Boxing Board of Control (BBBofC) has yet to finalize the length of his potential suspension.

The 34-year-old heavyweight tested positive for benzoylecgonine (a cocaine metabolite) following his 11th-round stoppage loss to Fabio Wardley on October 25, 2025. The defeat ended Parker’s run of six consecutive wins, with victories over the likes Deontay Wilder, Zhilei Zhang, and Martin Bakole. Meanwhile, Wardley was fast-tracked to full champion status once Oleksandr Usyk vacated the belt. Parker’s trainer, Andy Lee, has been vocal in support of his fighter, confirming that the appeal is underway.

“Joe’s working with lawyers in the UK and appealing the decision. He doesn’t know how long he is banned for. He doesn’t really know what the ruling is yet, but there will be some appeal. There has been an internal investigation as a team. This is not for me to say right now, but it will come out. Joe is quite confident that he will be exonerated with the evidence that I have seen and heard,” Lee said