MELBOURNE, Feb. 14 (Xinhua) -- Following are the Australian Open results on Sunday (prefix numbers denote seeding):
Men's Singles
4th Round
1-Novak Djokovic, Serbia, bt 14-Milos Raonic, Canada, 7-6 (4), 4-6, 6-1, 6-4
6-Alexander Zverev, Germany, bt 23-Dusan Lajovic, Serbia, 6-4, 7-6 (5), 6-3
18-Grigor Dimitrov, Bulgaria, bt 2-Dominic Thiem, Austria, 6-4, 6-4, 6-0
Aslan Karatsev, Russia, bt 20-Felix Auger-Aliassime, Canada, 3-6, 1-6, 6-3, 6-3, 6-4
Women's Singles
4th Round
2-Simona Halep, Romania, bt 15-Iga Swiatek, Poland, 3-6, 6-1, 6-4
3-Naomi Osaka, Japan, bt 14-Garbine Muguruza, Spain, 4-6, 6-4, 7-5
10-Serena Williams, United States, bt 7-Aryna Sabalenka, Belarus, 6-4, 2-6, 6-4
Hsieh Su-wei, Chinese Taipei, bt 19-Marketa Vondrousova, Czech Republic, 6-4, 6-2 Enditem