Roger Federer and Novak Djokovic both reached round four of the Australian Open with straight-set wins – although the Serb suffered an injury scare.

Switzerland’s five-time champion Federer beat Richard Gasquet 6-2 ,7-5, 6-4 to progress to the last 16.

The 36 year old Federer comfortably extended his record over Gasquet to 17-2, with the Frenchman only ever having beaten the 19-time Grand Slam champion on clay.

Federer slammed the door shut on any sustained comeback, however, clinching victory with a brilliant return game after one hour and 59 minutes with two backhand winners.

The defending champion will face Hungarian world number 80 Marton Fucsovics in the last 16.

Six-time winner Djokovic had treatment on his lower back and leg but saw off Albert Ramos-Vinolas 6-2, 6-3, 6-3.

The 30 year old is playing in his first event since Wimbledon last year after a six-month lay-off with an elbow injury. Despite the convincing scoreline he was not at his best on Margaret Court Arena and was often frustrated on court.

However, he closed out the match in two hours, 23 minutes and progresses to face 21-year-old South Korean Hyeon Chung, who is making his first appearance in the last 16 of a Grand Slam.