Novak Djokovic surged into an Australian Open quarter-final clash against Carlos Alcaraz with a dominant victory on Sunday while women's world number one Aryna Sabalenka was a ruthless winner.

Double defending champion Sabalenka is on a collision course with in-form world number three Coco Gauff in the semi-finals in Melbourne if both win in the last eight.

On the hottest day of the tournament so far with temperatures hitting 34 degrees Celsius (93 Fahrenheit), Alcaraz went through when Britain's Jack Draper retired injured.

The 37-year-old Djokovic then kept up his end of the bargain with a 6-3, 6-4, 7-6 (7/4) win over Czech 24th seed Jiri Lehecka in the prime-time match on Rod Laver Arena.

Djokovic is anticipating a "big battle" against Alcaraz on Tuesday.

"The kind of matches that I played against him remind me of my match-ups versus (Rafael) Nadal in terms of the intensity and the energy on the court," he said.

Djokovic appears to be growing into the tournament in an ominous sign for his rivals, as he........

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