Kei Nishikori

Japanese tennis star Kei Nishikori has taken the extraordinary step of apologising publicly for cheating on his wife.

Greek tennis star Stefanos Tsitsipas has unleashed an extraordinary spray at his father and coach after a shock loss in Montreal.

Boris Becker is among the top 20 career earners in men's tennis history, but he threw his winnings away after retiring.

Novak Djokovic moved into the fourth round at Flushing Meadows for the 14th consecutive appearance and did so in style.

Ash Barty and John Peers are a step closer the gold medal match after surviving a match tie-break.

Jordan Thompson pulled off a huge upset at Wimbledon, defeating Kei Nishikori in a successful day for the Aussie men.

Kei Nishikori has doubts about whether enough is being done to plan for a worst-case scenario at the Olympics.

Kei Nishikori, the 2014 U.S. Open runner-up, says he has tested positive for COVID-19 a second time.

Kei Nishikori, the 2014 US Open runner-up, tested positive for COVID-19 and will pull out of the tune-up tournament.

The former US Open runner-up and world No.13 has pulled the pin on the season-opening grand slam, citing injury.