Ashleigh Barty has fought back from a set down against Kiki Bertens to book her place in the quarter-finals of the Miami Open.

The Australian No.1 lost the first set 6-4 against her seventh-seeded opponent, but dug deep to draw level by taking the second 6-3.

The world No.11, who knocked out compatriot Samantha Stosur in the previous round, continued her dominance in the decider, the 12th seed serving it out for 6-3 in one hour and 53 minutes.

Barty now holds a 4-0 record over Dutchwoman, with three of those career wins against her coming from a set down – the most recent before Monday’s win coming in the semi-finals of this year’s Sydney International.

Barty will play either Petra Kvitova or Caroline Garcia in the last eight, with the added carrot of breaking into the top 10 for the first time if she makes the semi-finals.