Osaka launched her hard-court season at the Mubadala Citi DC Open last week, but suffered elimination at the hands of a rejuvenated Emma Raducanu. Osaka has been battling poor form recently, managing only six victories throughout the WTA Tour's clay and grass court seasons combined.

Naomi Osaka has announced Tomasz Wiktorowski as her new coach as she prepares for the US Open following a shock split from Serena Williams' former mentor Patrick Mouratoglou.

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

Four-time Grand Slam champion Naomi Osaka is set to team up with Tomasz Wiktorowski, who previously coached world No. 1 Iga Swiatek before their split last year. The former world No. 1 announced her surprising separation from Patrick Mouratoglou on Sunday,

Former World No.1 Naomi Osaka is yet to rediscover her Grand Slam winning ways, but legendary coach Rick Macci sees her making a return to the top ten on the WTA Rankings before the season is over.

Genie Bouchard extended her tennis career for at least one more match Monday, beating Emiliana Arango 6-4, 2-6, 6-2 in the first round of the National Bank Open

Preview the the 2025 National Bank Open match between Liudmila Samsonova vs. Naomi Osaka, plus betting odds, insights and head-to-head-stats.

Emma Raducanu beat four-times Grand Slam champion Naomi Osaka 6-4 6-2 in their first career meeting to reach the quarter-finals of the Washington Open on Thursday. Raducanu, U.S. Open champion in 2021,