The Ukrainian star starts a new chapter in her career this year as brand ambassador and business partner of the upstart racquet sports manufacturer.

Svitolina beat Veronika Kudermetova at the Australian Open to improve to 7-0 against Russian players since the start of the ...

Madison Keys won a power-hitting battle with Elena Rybakina in the Australian Open Round of 16 on Monday. In the ...

NFL stars and other pro-athletes are finding new fame off the field and in the podcast studios. NBC News' Jesse Kirsch goes ...