Story highlights

Halep wins 6-3 4-6 9-7 over Angelique Kerber

Saved two match points after holding two match points

Will face Caroline Wozniacki in Saturday's finale

CNN  — 

Often close but never the closer in grand slams, Caroline Wozniacki finally got the job done. Her wait is over.

While Wozniacki, 27, enjoyed the more comfortable outing against the unseeded Elise Mertens on Rod Laver Arena – triumphing 6-3 7-6 (7-2) – Halep dug deep once again to dispatch a rejuvenated Angelique Kerber 6-3 4-6 9-7 in an almighty scrap sure to be listed among the best of 2018 once the long campaign concludes.

It sets up a tantalizing battle between the world’s two highest-ranked players Saturday.