Australian Open results

Following are the collated results from the Australian Open at Melbourne Park on Sunday (prefix number denotes seeding):

Men's singles fourth round

1-Novak Djokovic, Serbia, bt 14-Gilles Simon, France, 6-3, 6-7 (1-7), 6-4, 4-6, 6-3

7-Kei Nishikori, Japan, bt 9-Jo-Wilfried Tsonga, France, 6-4, 6-2, 6-4

Tomas Berdych, Czech Republic, bt Roberto Bautista, Spain, 4-6, 6-4, 6-3, 1-6, 6-3

3-Roger Federer, Switzerland, bt 15-David Goffin, Belgium, 6-2, 6-1, 6-4

Women's singles fourth round

Maria Sharapova, Russia, bt 12-Belinda Bencic, Switzerland, 7-5, 7-5

1-Serena Williams, United States, bt Margarita Gasparyan, Russia, 6-2, 6-1

4-Agnieszka Radwanska, Poland, bt Anna-Lena Friedsam, Germany, 6-7 (6-8), 6-1, 7-5

Carla Suarez, Spain, bt 10-Agnieszka Radwanska, Poland, 0-6, 6-3, 6-2

Endi