The Russian will wear the brand for the next five years.
The last year in London promises to be a good one.
"I'm worried about players who aren't in the Top 100," says Alize Cornet.
Carla Suárez Navarro has been undergoing chemotherapy after being diagnosed with Hodgkin lymphoma.
Sofya Zhuk talks transition from tennis to modeling and "aggressive" response she's received online.
The two legends got together to chat about the ATP finals and their tremendous runs at No.1.
The Aussie opens up about dark days and new beginnings in an exclusive with Stellar Magazine
