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 ...

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

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

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 ...

"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 ...

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 ...

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

Naomi Osaka has just been through to the Montreal third round and it came after a major comeback pulled off by the Japanese, who defeated No. 13 seed Liudmila Samsonova 4-6 7-6 (6) 6-3 in just over ...

Naomi Osaka fought off two match points for a three-set win over Liudmila Samsonova to reach the third round of Canadian Open on Wednesday as Wimbledon champion Iga Swiatek cruised past her opponent ...