Novak Djokovic beats defending champion Jannik Sinner 6-3 3-6 6-4 4-6 4-6 to reach final
Djokovic continuing bid for record 25th Grand Slam singles title
Serb will face world number one Carlos Alcaraz on Sunday
Alcaraz earlier overcame fitness issues to win 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 7-5 against Alexander Zverev
*Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 1-3 Zverev
Image source, Getty ImagesNo panic from Alexander Zverev, who turns the second break point into game point.
The German hangs in a rally long enough to see Alcaraz send a forehand into the net.
Another mini escape in what could yet prove to be the great escape by Zverev.
Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 1-2 Zverev*
Image source, Getty ImagesCarlos Alcaraz is shouting to himself after missing a forehand and fearing his opportunity might soon be lost.
Not so fast! Alexander Zverev can't get over the line, and Alcaraz forces another break point with a forehand that has too much on it for Zverev to handle at the net.
Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 1-2 Zverev*
A clever serve by Alexander Zverev saves the break point.
That could be massive.
Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 1-2 Zverev*
Annabel Croft
Former British number one on BBC Radio 5 Sports Extra
After watching those first two sets, never in my wildest dreams did I think that this would be the situation we are watching right now.
Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 1-2 Zverev*
Great return, even better winner.
Break point Carlos Alcaraz!
Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 1-2 Zverev*
Carlos Alcaraz forces Alexander Zverev into the net, and to deuce from three points down.
Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 1-2 Zverev*
Is there a way back into this for Carlos Alcaraz?
At one point up 6-4 7-6 (7-5) 5-4 and 0-30 on Alexander Zverev's serve, he now needs to find a break in the fifth set to keep his hope of reaching a fist Australian Open final alive.
Zverev is showing no signs of wobbling at 40-0 in his latest game, but misses with a forehand to bring Alcaraz to 40-30.
Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 1-2 Zverev*
Image source, Getty ImagesWith the relative comfort of a 30-0 lead, Carlos Alcaraz, decides not to chase after an Alexander Zverev drop shot.
The Spaniard has been having to choose his battles wisely over the past two hours. It proves good judgement as he continues on his way to a hold to 15. He's still there.
*Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 0-2 Zverev
Carlos Alcaraz has just been handed a time violation warning by the umpire.
*Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 0-2 Zverev
Carlos Alcaraz comes into the net and recovers one forehand before being beaten by a well-placed backhand pass for 30-0. The Spaniard holds out both arms and mutters as he walks back to the baseline.
A comfortable hold to 15 for Alexander Zverev.
Jonathan Jurejko
BBC Sport tennis news reporter in Melbourne
Finally! This is the first five-setter we have seen on Rod Laver Arena this fortnight.
We have been complaining that the tournament had been a bit of a dud so far, but things are starting to cook.
Alcaraz has won 14 of his 15 career five-set matches.
Zverev has come back from two sets to love three times - including the 2020 US Open semi-finals.
What gives? First blood to the German.
Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 0-1 Zverev*
Annabel Croft
Former British number one on BBC Radio 5 Sports Extra
Is this the first point in at least four hours that Zverev is ahead in the scoreline? I think Alcaraz has been ahead in the scoreline since the start and it has been catch up since.
Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 0-1 Zverev*
Image source, Getty ImagesOuch. A double fault from Carlos Alcaraz gifts Alexander Zverev the break.
From two sets down, the German third seed hits the front.
*Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 0-0 Zverev
Carlos Alcaraz sends a forehand beyond the baseline. Break point Alexander Zverev in the opening game of the fifth. Huge moments.
*Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 0-0 Zverev
A superb rally is finished off by Carlos Alcaraz with a forehand winner on what is a crucial point at 30-30 on the Spaniard's serve.
But he's forced into the net and Alexander Zverev reaches deuce.
*Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 0-0 Zverev
Four hours and 10 minutes on the clock.
A two-set deficit overturned.
Carlos Alcaraz hanging in despite at one point looking like he might have to retire as he struggled with what appears to have been serious cramping.
This has already had just about everything, and we still have a deciding set to come.
Annabel Croft
Former British number one on BBC Radio 5 Sports Extra
Oh my goodness. This is a blockbuster. We were looking for drama in these championships and we've got it.
Over four hours these players have been on court. That's how demanding this sport is.
Add in the heat, they were playing in the hottest part of the day today.
Gigi Salmon
BBC Sport tennis commentator on BBC Radio 5 Sports Extra and BBC Sounds
A beautiful shot from Zverev! Into the corner. Point won, game won, set won. We are going the distance.
Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-7 (4-7) 0-0 Zverev
Image source, Getty ImagesAlexander Zverev sends a forehand out of reach as Carlos Alcaraz, now moving much better, scampers across his baseline but fails to get his racquet on it.
We're going to a fifth set in the first men's semi-final of the day!
*Alcaraz 6-4 7-6 (7-5) 6-7 (3-7) 6-6 (4-6) Zverev
Into the net from Carlos Alcaraz!
Two set point for Alexander Zverev.
