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

Naomi Osaka ended her coaching relationship with Patrick Mouratoglou after less than a year. Osaka expressed gratitude on social media for the collaboration. The split comes after her early defeat at ...

Canadian-Filipina Tennis Star Scores Breakthrough Victory in Washington WASHINGTON, D.C. — Canadian tennis player Leylah ...