Ash Barty is set to become the first Aussie to play in the Australian Open women's singles final in more than 40 years.
Here's everything you need to know ahead of her history-making match.
What time is the Australian Open women's singles final?
The match is set to get underway at 7:30pm AEDT on Saturday night, which is 6:30pm in Queensland, 6pm in the Northern Territory, 7pm in Adelaide, and 4:30pm in Perth.
Channel Nine will broadcast the match, which will be followed by the all-Australian men's doubles final that will see Nick Kyrgios and Thanasi Kokkinakis face Matthew Ebden and Max Purcell.
You can follow all the action with ABC Sport on our live blog.
Who is Barty playing in the final?
The player that stands in the way of Barty creating history on Australian soil is 27th seed American Danielle Collins.
The 28-year-old from Florida is playing in her first grand slam final, having reached the semifinals of the Australian Open in 2019.
Collins appears to have an affinity with Melbourne Park because her best results in the other majors have been a quarterfinal finish at Wimbledon, a third-round exit in the US Open, and a second-round exit at Roland Garros.
On her way to the final, Collins has dropped just two sets and seen off seventh seed Iga Świątek comfortably in the quarters, winning 6-4, 6-1.
Who is Danielle Collins?
A two-time college champion, the American has only won two WTA singles titles in a decade on the professional tour. However, both those came last year — in Palermo, Italy, and San Jose, USA.
She also beat Barty last year in Adelaide, in the lead-up to the Australian Open.
That's her only singles victory over the Aussie. But she also pushed Barty to a third-set tiebreak in the semis in Adelaide the previous year.
Barty's other two victories came on clay on her road to the French Open title in 2019.
How long has it been since an Australian woman won the Australian Open singles?
Calm down, Rose. It hasn't been that long, but it has been 44 years.
Chris O'Neil was the last Aussie woman to win the Australian Open singles crown, when she beat American Betsy Nagelsen way back in 1978.
That was the last of a run of seven-straight Aussie titles won by locals — Evonne Goolagong four times and Margaret Court, Kerry Reid and O'Neil once each.
But since then, only Wendy Turnbull has reached the women's final, in 1980, losing to Czech player Hana Mandlíková, who actually became an Australian citizen just a few years later.
I don't think we can claim her though.
How likely is it Barty will win?
Anything can happen in a grand slam final, but Barty has been in incredible form throughout the tournament.
She has not dropped a set in the tournament and has only lost one service game.
Collins, meanwhile, won her first two matches in straight sets, before battling past Clara Tauson and 19th seed Elise Mertens after dropping the first set of each match. She then beat French veteran Alize Cornet and 2020 French Open champion Świątek to reach the decider.
So while she has faced genuine opposition, world number one Barty, in the form she's in, is a definite step up.