World No.2 Caroline Wozniacki is the first woman through to the Australian Open final after ending the undefeated summer run of unseeded Belgian Elise Mertens.

Seeking her first grand slam title, the Danish star booked her place with a 6-3 7-6 (7-2) victory in one hour and 37 minutes on Rod Laver Arena on Thursday.

Wozniacki will face either world No.1 Simona Halep or 2016 champion Angelique Kerber in Saturday night’s title decider at Melbourne Park.