Former world No.4 Kei Nishikori confirmed he will retire after the 2026 season, saying he has "given it his all". The Japanese star, who turned pro in 2007, has captured 12 ATP titles and last appeared on the main tour at Cincinnati in August 2025.

Nishikori’s career highlights include a 2014 US Open semi‑final where he defeated 24‑time Grand Slam champion Novak Djokovic. He credits his time on the ATP Tour and a decade in the top 10 as sources of pride and gratitude.

In recent months injuries forced Nishikori onto the Challenger circuit, yet he remains driven by a love for the sport. He attributes his resilience to family support and a continuous desire to improve.

The announcement marks the end of a storied era for Japanese tennis, closing a chapter that began with his 2007 debut and spanned nearly two decades of competition at the highest level.