Nishikori addresses the possibility of his US Open mixed doubles campaign with Osaka overlapping with singles qualifying.

Osaka and Nishikori set to compete as a duo in a star-studded US Open mixed doubles event.

Naomi Osaka’s U. S. Open mixed doubles partner, Kei Nishikori, shared a priceless response when asked about the tournament, ...

TOKYO (AP) — Former world No. 4-ranked and 2014 U.S. Open finalist Kei Nishikori said Thursday on social media that he plans to retire at the end of this tennis season. The 36-year-old Nishikori ...

Before the singles matches begin at the final Grand Slam of the year, the US Open, an intriguing mixed doubles tournament is ...

PARIS (AP) — Former U.S. Open finalist Kei Nishikori will conclude his career at home when he plays in the Japan Open later this year. The 36-year-old Nishikori has been given a wild card invitation ...