The four-time major champion announced that she had parted ways with coach Patrick Mouratoglou following middling results.

Former Wimbledon champion and famous tennis coach Goran Ivanisevic has hit back at Patrick Mouratoglou for criticising him ...

A war of words has erupted between top tennis coaches Goran Ivanisevic and Patrick Mouratoglou over Stefanos Tsitsipas.

Osaka has won only one title while collaborating with Mouratoglou – more precisely the Saint-Malo WTA 125 – really too little ...

"This has been a relationship of less than a year. Osaka has won a fair amount of matches, but not at the biggest and best ...

"I better not say what I think about him... If I go to Toronto or Cincinnati, I'm most excited to see Mouratoglou." ...

Naomi Osaka didn't wait too long to add a new name to her coaching staff as the current world No. 49 is set to be assisted by ...

Wimbledon champion Iga Swiatek's untroubled tournament opener followed Naomi Osaka's battling victory over Liudmila Samsonova ...

Naomi Osaka secured a second-round win at the Toronto Masters under her new coach, Tomasz Wiktorowski — the Polish tactician ...

Naomi Osaka came back from the brink to pull off an incredible comeback at the Canadian Open. No. 13 seed Liudmila Samsonova ...