Former World No.1 Daniil Medvedev locked in an all-Russian Adelaide International quarter-final with Karen Khachanov on Wednesday, while Aryna Sabalenka stormed back to book her place in the last eight. 

Medvedev, runner-up at the last two Australian Opens, blew away the new year cobwebs with a 6-0, 6-3 romp over Serbian Miomir Kecmanovic. It came a day after the 2021 US Open champion had to save nine set points against first-round opponent Lorenzo Sonego before the Italian retired hurt.