If Serena Williams did not miss her life as a professional tennis player, she wouldn’t be at Wimbledon playing in both the singles and doubles competitions.But that doesn’t mean there aren’t things Williams doesn’t care for about that life, including the logistics of the sport’s anti-doping rules.“It’s grueling,” she said Sunday in her pre-tournament news conference. “I didn’t know some of the rules, so apparently like if you miss a test. Outside of your window, it still counts as miss, and like, so I guess I can’t go pick up my kids.”Under the World Anti-Doping Agency (WADA) rules, players have to submit to a test when the doping control officer requires them, even if it is outside their window.However, outside of that window, if a doping officer can’t find them, they do not get penalized for missing a test, as Williams asserted, when she called the current protocols “unprofessional”.Williams’ comments came just days after Markéta Vondrouśová, the 2023 Wimbledon champion, received a four-year ban for refusing to take a test when a doping control officer showed up at her home outside of the one-hour window she had specified for when she would be available for a drug test.“I hate it,” she said.Williams said the drug-testing requirements were a major reason she resisted coming back after she played what she thought was her final match and tournament four years ago at the U.S. Open.“My life is busy, I run a company, I run a VC company. I travel the world,” she said. “I have children, so it’s like I could be in so many different cities, so many different times, but just getting that discipline of like reporting, obviously, I don’t mind because I love, I always have been very clear about what I do.“But just getting in that routine of like, all right, first of all, learning the new rules, and then just like getting back and like reporting every day. I guess now for 24 hours where I’m going to be it’s just different, at least for me.”That whereabouts reporting is for one hour per day, rather than all 24 hours of that day.Williams’s comments show how even the best players in the world, with access to the most expensive representatives and advisors, aren’t always clear about what the anti-doping rules are.Regardless, she has set her questions and her reservations aside to give tennis another go and see what she might have left, though she hesitated in accepting a wild card for singles until Sunday, the day before the deadline.“I thought, not every day Wimbledon holds a wild card for someone,” she said. “I thought, well, I should really take this opportunity. Who knows if I’ll ever make it here again, this could be it, you know, and so, I’m just like, what am I, what, what, what’s wrong with me, Serena? What are you thinking? Like, are you, are you nuts? Like, you really should do this.”Williams will play Maya Joint, a 20-year-old talent who represents Australia but has struggled this season, on Centre Court Tuesday afternoon.“People live to be an athlete, and I had this great opportunity to showcase what I do, what I do best, I suppose. I think ultimately, I was like, that is pretty cool, so I should do it.”