Roger Federer and Andy Murray turn on masterclass at Australian Open

Roger Federer and Andy Murray put on a masterclass on Friday as they swept into the last 16 of the Australian Open, hoping to take advantage of Novak Djokovic’s shock exit.

Murray swamped Sam Querrey 6-4, 6-2, 6-4 and Federer humbled Tomas Berdych 6-2, 6-4, 6-4 in just 90 minutes, maintaining his 100 per cent record over his old rival at Melbourne Park.

Women’s world number one Angelique Kerber also hit form as she dropped only four games against Kristyna Pliskova to race into a fourth-round meeting with America’s Coco Vandeweghe.

Murray and Federer had both watched from afar on Thursday as Djokovic, the defending champion and six-time winner, suffered a stunning defeat by 117th-ranked Denis Istomin.

Querrey also upset Djokovic at Wimbledon last year but Murray never looked like slipping on any banana skins in round three.

He put Querrey away 6-4, 6-2, 6-4 in just under two hours, winning 77 per cent of points on his first serve and facing only three break points in a clinical display.