Japanese tennis player Kei Nishikori has announced his retirement from professional tennis at the conclusion of the 2026 season, marking the end of a career that saw him break barriers and reach the top of the sport.
"To be honest, I still wish I could continue my playing career," Nishikori, now 36, wrote on social media. "Even so, looking back on everything up to this point, I can proudly say that I gave it my all. I am truly happy to have walked this path. I will cherish every moment of the remaining matches and fight to the very end."
Nishikori made history as the first Japanese player to break into the ATP top 10, eventually reaching a career-high ranking of world No. 4. In 2014, he became the first Japanese man to reach a Grand Slam singles final at the US Open, where he lost to Marin Cilic in straight sets. His run to the final included a stunning semifinal victory over 24-time Grand Slam champion Novak Djokovic.
The 2016 Olympic bronze medalist has won 12 ATP Tour titles since turning professional in 2007. However, his career has been plagued by injuries, and his ranking has fallen to 464th. His last main ATP Tour appearance was at the Cincinnati Open in August 2025, and he has since competed on the Challenger Tour.
"Reaching the ATP Tour, playing at the highest level of competition and maintaining a presence in the top 10 is something I am extremely proud of," Nishikori said. "Whether in victory or defeat, the special atmosphere I felt in packed arenas is irreplaceable."
Reflecting on the challenges, he added: "There were also times when I was overwhelmed by frustration and anxiety due to repeated injuries that prevented me from playing as I wanted. Even so, my love for tennis and my belief that I could become a stronger player always brought me back to the court."