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 ...

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 ...

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

Naomi Osaka recently heaped praise on the Williams sisters. The Japanese star hailed Venus Williams for her return to tennis ...

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 was born in Japan on October 16, 1997, to a Haitian father and a Japanese mother. She spent the first three years ...

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 ...

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 ...

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

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