Ashleigh Barty has risen to the challenge and moved safely into the Australian Open fourth round with a steely win over big-hitting youngster Elena Rybakina.

Australia’s world No.1 proved too classy for the in-form Kazakh, weathering an early storm before carving out a 6-3 6-2 victory on Rod Laver Arena.

Barty next plays either American 18th seed Alison Riske, who knocked her out of Wimbledon last year, or her German doubles partner Julia Goerges on Sunday for a quarter-final berth.