Three-time Grand Slam champion Stan Wawrinka plans to retire from professional tennis in 2026, stating he is at peace with the decision. Despite struggling with injuries and a current ranking of 157, the 40-year-old Swiss star remains passionate about the sport and aims to return to the top 100. Wawrinka, who won the Australian Open, French Open, and US Open, will begin his farewell tour at the upcoming United Cup.