COCO GAUFF and Aryna Sabalenka will meet in a rematch of the US Open final tomorrow for a place in the Australian Open trophy decider.

While seeds have fallen around them, Gauff and Sabalenka have made it through to the last four for what feels like a de facto final.

Fourth seed Gauff survived her first test of the tournament, needing three hours and eight minutes to defeat unseeded Ukrainian Marta Kostyuk 7-6 (6) 6-7 (3) 6-2.