Day 6 of the Australian Open saw a number of big names in men's and women's singles easily advance to the next round. But one major loss was No. 7-ranked Jessica Pegula, who was defeated in two sets by Serbian Olga Danilović.

Novak Djokovic, Coco Gauff roll to Australian Open's 4th round. Naomi Osaka retires due to injury and Jessica Pegula was upset in the third round.

After losing the first set 7-6 (3), two-time Australian Open champ Naomi Osaka retired from her third-round match against Belinda Bencic due to injury.