Serena Williams once again found herself at the center of tennis conversation, three years after playing her most recent match. The 23-time Major winner re-entered the ITIA anti-doping program.
Thus, she made a move that immediately fueled speculation about a potential comeback at some point of 2026 at 44. Serena quickly shut down those rumors, insisting she is not preparing for a return.
Yet her decision still sparked curiosity across the sport, including from former ace machine John Isner. He brought a broader perspective on why Williams may have taken this unexpected step.
From long-time rivals, to forever friends 🫂
Serena Williams introduces Maria Sharapova into the International Tennis Hall of Fame! pic.twitter.com/fa9RRc9Goc
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In John's view, the move looks less like a hidden comeback plan and more like a strategic decision to keep possibilities open. Rejoining the program does not commit her to anything.
On the other hand, it ensures she has the option to compete from next April is she ever feels the spark again. Singles, doubles, or the US Open mixed doubles – every option is now on the table.
For Serena, staying eligible may simply be a matter of preparation rather than intention. Although she never officially retired or closed that door, the legend has been away from the sport for years, focusing on her family and business.
Re-entering the ITIA anti-doping program places her back in the system where she spent 25 years. Should she ever decide to step onto a court again, in any form, she will get the green light.
Serena Williams© Stream screenshot
While fans will dream, and headlines will swirl, the reality remains unchanged. Williams is not planning a comeback. However, as Isner suggested, she may simply prefer to leave the door unlocked.
After all, it's Serena, and you never know when it comes to her and tennis.
"It's Serena Williams, isn't it? She is always in the spotlight. Why submit to doping tests again? I'm not saying she is definitely going to come back, but maybe she is just leaving the door open for a possible return in some form or another.
Maybe just in doubles. Who knows? I think for her it was more like, 'Well, if I decide to come back, it's possible. I'm back in the anti-doping program. That does not mean I'm coming back for good, but I have that option.'
She's simply putting things in place in case she wants to come back," John Isner said.
