Serena Williams, considered by many the greatest women’s tennis player of all time, is now eligible to compete on the WTA Tour and at Grand Slams for the first time in nearly four years.The International Tennis Integrity Agency (ITIA) has listed Williams, 44, on its roster of reinstated tennis players, with an eligibility date of Feb. 22, 2026. The 23-time Grand Slam singles champion initially denied a return to the sport last year after appearing in a tennis anti-doping pool, but has since softened her position, refusing to rule out a tennis comeback during an interview with “Today” in January.But which tournaments could Williams play in? Would she partner with her sister Venus, the seven-time Grand Slam singles champion with whom she won 14 major doubles titles and three Olympic golds, who has also recently returned? And what has she had to do to make a tennis return possible?Is Serena Williams returning to tennis?In public, Williams has moved from a definitive “no” to non-committal.When Williams’ name was seen in the tennis anti-doping pool last December, Williams posted on X: “Omg yall I’m NOT coming back. This wildfire is crazy.”But during an interview on “Today” in January, Williams was offered the chance to put the possibility of her return to bed. Instead, she laughed and responded: “If I want to put it to bed … Listen, I want to go to bed — it’s early.”On both occasions, representatives for Williams did not respond to a request for comment. Then, Feb. 19, Williams posted a cryptic TikTok in which she practiced serves alone on a tennis court for, she said, the first time since 2023.