Since winning the junior French Open crown in 2015 and cracking the Top 200 in early 2016, Tommy ... Kei Nishikori. His efforts have been rewarded with a wildcard into the main draw of the US Open ...

Japanese veteran Kei Nishikori admitted Sunday he almost ... he will next play either American 12th seed Tommy Paul or Australia's Chris O'Connell.

Kei Nishikori made a winning debut to his European clay-court season on Thursday, battling past Australia's Aleksandar Vukic in his opening match at the Mutua Madrid Open, 6-4, 3-6, 6-3.

Japan’s Kei Nishikori has expressed concerns about staging the Olympic Games in Tokyo this summer as Japan battles to contain a surge in COVID-19 cases. Fellow tennis player Naomi Osaka had ...

SAN JOSE, California -- Top-seed Andy Roddick easily defeated Delray Beach winner Kei Nishikori of Japan 6-2 ... John Isner beat third-seeded German Tommy Haas 4-6 7-6 6-3 to advance to the ...

MONTREAL--Kei Nishikori rallied to beat Alex Michelsen 3-6, 7-5, 6-4 on Tuesday in the first round of National Bank Open, earning his first victory in an ATP Masters 1000 event in three years. The ...

Denis Shapovalov (29), Canada, def. Kei Nishikori, Japan, 6-1, 6-4. Damir Dzumhur, Bosnia-Herzegovina, def. Sebastian Baez (32), Argentina, 1-6, 6-1, 6-2. Lorenzo ...