Last year’s Australian Open winner Naomi Osaka lost to teen sensation Cori “Coco” Gauf in the third round of the tournament. American beat defending champion in straight sets, 6-3, 6-4.
Gauf’s next opponent is the winner of Sofia Kenin vs. Zhang Shai pair.
Denmark’s Caroline Wozniacki lost to Ons Jabeur of Tunisia 5-7, 6-3, 5-7 and ended her tennis career.
Earlier 29-year-old Wozniacki, who won 30 titles during her career, announced she is quitting tennis. Wozniacki is the winner of the 2018Australian Open.