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

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

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 ...

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 ...

Iga Swiatek dominated in Montreal, while Naomi Osaka fought hard for a victory. Eugenie Bouchard bid farewell to her tennis ...

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

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

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

Naomi Osaka’s tennis career has been, quite frankly, a rollercoaster. Not just any rollercoaster, but one of those ...

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

The former No. 1 has been seen practicing with Iga Swiatek's previous coach, after parting ways with Patrick Mouratoglou on Sunday.