Aryna Sabalenka cruises through as Coco Gauff battles into last eight - Sabalenka brushed aside Mirra Andreeva 6-1 6-2 for her 18th win in a row at Melbourne Park.

Defending champion Aryna Sabalenka knocks out teenager Mirra Andreeva on Rod Laver Arena; Coco Gauff battles back to set up showdown with Spaniard Paula Badosa; watch all the action from the ATP and WTA Tours on Sky Sports Tennis and Sky Sports+,

MELBOURNE, Australia — It was a meaningless hit-and-giggle session, a mixed doubles exhibition at Rod Laver Arena just for fun and charity in front of fans a few days ahead of the Australian Open , so Coco Gauff was calling out how fast she would try to hit some serves.