Australian Ajla Tomljanovic has registered one of the best wins of her career, beating British star Johanna Konta in straight sets at the Brisbane International.

After making a frustrated Konta pay for her errors in the first set, world No.46 Tomljanovic outlasted her opponent in a topsy-turvy second to win 6-2 7-6 (7-2) on Wednesday to reach the quarter-finals.

Tomljanovic will face world No.8 Czech Karolina Pliskova for a place in the final four.