The news comes after Naomi Osaka lost her second match at the D.C. Open and just before she begins competing in Toronto.

Osaka, a four-time Grand Slam champion, has been in a career rut for years. Mouratoglou joined her staff in September of 2024 ...

Naomi Osaka and coach Patrick Mouratoglou are done working together after less than a year, the four-time Grand Slam champion ...

Serena Williams' childhood coach Rick Macci still believes in Naomi Osaka but highlights to the former world No. 1 that she ...

A new day at the Canadian Open brings fresh social media updates from several of the Tour's biggest stars. Naomi Osaka shared an emotional reaction following her remarkable second-round victory over ...

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 ...

Four-time Grand Slam champion Naomi Osaka has split with coach Patrick Mouratoglou after just shy of a year together. Osaka confirmed the split on social media ahead of the WTA 1,000 Canadian Open in ...

A four-time Grand Slam champion, Osaka was playing her first tournament since parting ways with Patrick Mouratoglou, the former coach of Serena Williams whom she hired last fall. The 27-year-old is ...

Osaka's time with Mouratologou followed an up-and-down sequence of promising signs and frustrations with either injury or close-run defeats.

Naomi Osaka has announced the end of her association with Patrick Mouratoglou after less than a year of collaboration. The ...

Naomi Osaka is making a major change at the start of the North American hard-court swing as the former world No. 1 decided to ...

Japan's Naomi Osaka, a four-time Grand Slam singles champion, will work with Polish coach Tomasz Wiktorowski on a trial basis ...