A quick look at the Australian Open for Sunday: Roger Federer faces one of the game's brightest new stars when he takes on Stefanos Tsitsipas in the fourth round at Melbourne Park
Australian Open Glance: Federer takes on new star Tsitsipas
A quick look at the Australian Open for Sunday: Roger Federer faces one of the game's brightest new stars when he takes on Stefanos Tsitsipas in the fourth round at Melbourne Park
