Naomi Osaka battled past Petra Kvitova to win her first Australian Open crown and become the new world number one.
26 Jan 2019 6:06 PM IST
Stefanos Tsitsipas beat Federer, who is 17 years his senior, 6-7 (11-13), 7-6 (7/3), 7-5, 7-6 (7/5) on Rod Laver Arena.
20 Jan 2019 6:06 PM IST