Women's singles semi-finals on day 12 of Australian Open
Madison Keys comes from behind to stun Iga Swiatek and reach final against Aryna Sabalenka
Keys saved match point in a 5-7 6-1 7-6 (10-8) over second seed Swiatek
Sabalenka beat Paula Badosa in straight sets to reach final for third year in a row
Sabalenka will also retain world number one ranking regardless of result
Use audio icon for BBC Radio 5 Sports Extra commentary (UK only)
*Keys 5-7 6-1 6-6 (5-6) Swiatek
Pat Cash
Former Wimbledon champion on BBC 5 Live and BBC Sounds
A good forehand there from Madison Keys, she got it down the line and the depth really came off sweetly, it's almost better when you don't have time to think.
*Keys 5-7 6-1 6-6 (5-6) Swiatek
Nope, not this time she can't. Keys stabs through Swiatek's defence and hits a forehand winner down the line.
Keys 5-7 6-1 6-6 (4-6) Swiatek*
Swiatek has Keys on the run and the American doesn't look comfortable as she nets.
Can Swiatek get a three-point lead for the first time this tie-break?
Keys 5-7 6-1 6-6 (4-5) Swiatek*
Keys keeps it positive with a risky shot that comes off, clipping the baseline.
Swiatek's return is rushed and long.
*Keys 5-7 6-1 6-6 (3-5) Swiatek
Oooooh. A big, long miss from Madison Keys. Iga Swiatek gets her mini-break back.
First to 10 remember.
*Keys 5-7 6-1 6-6 (3-4) Swiatek
Great defence from Keys and Swiatek doesn't expect the ball to come back over the net as she watches it race past her.
Keys 5-7 6-1 6-6 (2-4) Swiatek*
Impressive backhand winner from Swiatek. Can the Pole give herself some breathing space?
Time to change ends.
Keys 5-7 6-1 6-6 (2-4) Swiatek*
Impressive backhand winner from Swiatek. Can the Pole give herself some breathing space?
Keys 5-7 6-1 6-6 (2-3) Swiatek*
Swiatek nets. You can't call it.
*Keys 5-7 6-1 6-6 (1-3) Swiatek
The court opens up but Keys misses out, dabbing a backhand into the net.
It's now midnight in Melbourne.
*Keys 5-7 6-1 6-6 (1-2) Swiatek
Madison Keys nets. We remain on serve.
Keys 5-7 6-1 6-6 (1-1) Swiatek*
Pat Cash
Former Wimbledon champion on BBC 5 Live and BBC Sounds
It's been such a shaky performance from Iga Swiatek.
Keys 5-7 6-1 6-6 (1-1) Swiatek*
Another double fault from Iga Swiatek. This one was nowhere near as close as the last.
Keys 5-7 6-1 6-6 (0-1) Swiatek*
And we begin with an immediate mini-break.
This match. What drama.
*Keys 5-7 6-1 6-6 (0-0) Swiatek
Extraordinary! Iga Swiatek's second serve hits the very top of the net and spins out.
A double fault.
First to 10 tie-break.
Keys 5-7 6-1 5-6 Swiatek*
And here comes Keys. A brutal return has Iga Swaitek rushing a forehand, and the Pole finds the net.
Break-back point to take us to a tie-break.
Keys 5-7 6-1 5-6 Swiatek*
There was always going to be another twist in this one, right?
Swiatek nets a low backhand into the net.
Keys 5-7 6-1 5-6 Swiatek*
40-30.
Keys 5-7 6-1 5-6 Swiatek*
Phenomenal tennis. Maddison Keys takes the next point with a clutch forehand winner that Iga Swiatek can't reach on the stretch.
It kissed the very edge of the baseline.
Keys 5-7 6-1 5-6 Swiatek*
Iga Swiatek raises her fist. She's two away now after Madison Keys slices her return.