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

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

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.

"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 ...

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 ...

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

Wimbledon champion Iga Swiatek cruised, Naomi Osaka battled through and Canadian Eugenie Bouchard called time on her WTA ...

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

Wimbledon champion Iga Swiatek cruised into the third round of the WTA Canadian Open on Wednesday as Naomi Osaka fought off ...

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