Serena Williams is back at Wimbledon, and before she even steps on Centre Court, she has turned her comeback into a critique of tennis anti-doping rules. On Sunday, Williams said the logistics around testing were “grueling” and called the current protocols “unprofessional” as she prepared for her first singles match in almost four years.
That matters now because Williams, who played what she thought would be her final match at the U.S. Open four years ago, said the testing requirements were a major reason she hesitated to return. She accepted a singles wild card only on Sunday, the day before the deadline, and said the decision came with a blunt recognition that this could be her last chance to play here again. “I thought, not every day Wimbledon holds a wild card for someone,” she said.
Her frustration was not only about the rules themselves but about how they fit into the life she is living now. Williams said, “My life is busy, I run a company, I run a VC company. I travel the world,” adding that she has children and can be in many cities at many times. The anti-doping system asks for a one-hour whereabouts window each day, but under World Anti-Doping Agency rules a doping control officer can still require a test outside that slot, and a missed test can count even then. Williams said she misunderstood that part and believed it meant she could not simply go pick up her kids.
That confusion sharpens the friction in her comeback story. The rules are meant to keep testing surprise-based, but they also ask athletes to plan their lives around being reachable, and Williams said that routine was hard to rebuild after stepping away from singles in 2021. She said she had to relearn the new rules, get back into reporting every day and accept that “for 24 hours where I’m going to be it’s just different,” even though the reporting itself is for one hour per day. For a player returning at 43, the burden is not only physical. It is administrative, constant and, by her account, still not well explained.
Williams will play Maya Joint on Centre Court Tuesday afternoon, a match that now carries more than the usual weight of a comeback. She is also the best-known athlete to compete at the elite level while taking GLP-1 drugs, a class that World Anti-Doping Agency has monitored since 2024 and still considers legal for athletes. But the immediate question is simpler: whether Williams can turn a return she almost declined into something that lasts beyond one match.

