World number one Simona Halep saw off 2016 champion Angelique Kerber in a thrilling contest to reach her first Australian Open final.
The Romanian, twice a French Open runner-up, saved two match points on her way to a 6-3 4-6 9-7 victory.
In Saturday's final Halep will face Caroline Wozniacki, a straight-set winner over Elise Mertens, with both women looking for a first major title.
The world number one ranking will also be up for grabs for the champion.
More to follow.