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.

Down 5-0 in the first set, the former No. 1 player beats Karolina Muchova in three sets to make a Grand Slam third round for the first time in three years