The 20-year-old Stefanos Tsitsipas handed two-time defending champion Roger Federer a four-set loss.
Author: Sandra Harwitt, Special to USA TODAY
US Open champion Naomi Osaka survives third-round scare at Australian Open
The No. 4 seed struggled to a 5-7, 6-4, 6-1 third-round victory to keep her chances of winning a second consecutive Grand Slam title alive.
Defending Australian Open champion Caroline Wozniacki all class after early loss to Maria Sharapova
Defending Australian Open champion Caroline Wozniacki was all class after her early loss to Maria Sharapova 6-4, 4-6, 6-3.
Maria Sharapova upsets defending Australian Open champ Caroline Wozniacki
Maria Sharapova spoiled Caroline Wozniacki’s hope of defending her lone Grand Slam title, upsetting the reigning Australian Open champ Friday.
Amanda Anisimova scores Australian Open upset, reaches her first Grand Slam fourth round
Amanda Anisimova is making a name for herself at the Australian Open, reaching a Grand Slam fourth round for the first time in her young career.