Postpublished at 22:38 BST 11 September 2020
Zverev 3-6 2-5 Carreno Busta*
A love service game as PCB eases off a little.
Can the Spaniard serve out for the second set?
Second seed Dominic Thiem beats third seed Daniil Medvedev 6-2 7-6 7-6 to reach final
Austrian Thiem will face Germany's Alexander Zverev in Sunday's final
Zverev fights back to beat Pablo Carreno Busta in five sets in first semi-final
Carreno Busta wins first two sets 6-3 6-2 as Zverev struggles with his form
But fifth seed Zverev takes next three sets 6-3 6-4 6-3 to reach first Grand Slam final
Britain's Alfie Hewett reaches wheelchair singles and doubles finals
Jonathan Jurejko and Saj Chowdhury
Zverev 3-6 2-5 Carreno Busta*
A love service game as PCB eases off a little.
Can the Spaniard serve out for the second set?
*Zverev 3-6 1-5 Carreno Busta
Zverev breaks back!!!
But is this just stalling before the inevitable?
Zverev 3-6 0-5 Carreno Busta*
Not so fast big man. PCB rediscovers his serve and then saves the third break point as Zverev punches a forehand into the net.
He should have made that. Perhaps not on this form.
Zverev 3-6 0-5 Carreno Busta*
Now then. A little bit of history repeating as Zverev - like he did post double break in the first set - is 0-40.
Cripes! Readers, he ended up getting a break back in that set.
Leon Smith
GB Davis Cup captain on BBC Radio 5 Live Sports Extra
You start to wonder if there's something else going on with Zverev. Is he feeling well? Is there an injury? Is it nerves?
The body language is really drained of all the energy you would expect in a semi-final where he is significantly the higher ranked player. There's no determination there.
Zverev 3-6 0-5 Carreno Busta*
Zverev's double-handed backhand flies wide. A really sorry sight.
He's broken, in oh so many ways.
*Zverev 3-6 0-4 Carreno Busta
But noooooooooo!
He's makes - I make it - his sixth error in this deuce ding-a-long on his forehand side.
Break point 400 for PCB.
*Zverev 3-6 0-4 Carreno Busta
Zverev saves with an ace - his seventh of the match.
PCB then makes an error on his backhand side.
Now Sascha??? Surely?
David Law
BBC Radio 5 Live Sports Extra tennis commentator
Zverev has just hit a backhand long that he would have hit with his eyes closed when he was five.
*Zverev 3-6 0-4 Carreno Busta
It's been 84 years!!
This fifth game will never end.
PCB has yet another break point though!
David Law
BBC Radio 5 Live Sports Extra tennis commentator
I struggle to think of a match where Zverev has played worse than this.
*Zverev 3-6 0-4 Carreno Busta
PCB, who is playing to Zverev's forehand side as often as he can, has another break point.
*Zverev 3-6 0-4 Carreno Busta
Zverev's win percentage on his second serve is at 27%!!!
27 PER CENT!!!
We're back at deuce after Zverev saves another break point. The 10th he has faced.
*Zverev 3-6 0-4 Carreno Busta
Deuce as PCB produces a gorgeous improvised flicked forehand down the line, which is too cute for his opponent.
*Zverev 3-6 0-4 Carreno Busta
30s each as another half-hearted attempt at a sliced forehand finds the net.
What is happening?!!
Leon Smith
GB Davis Cup captain on BBC Radio 5 Live Sports Extra
You can see the confidence running through Carreno Busta's veins. He is doing a terrific job right now.
*Zverev 3-6 0-4 Carreno Busta
The Spaniard wins his service game to 15 with another thumping forehand winner.
This is a day out at the local courts for him.
Zverev 3-6 0-3 Carreno Busta*
PCB ha made no unforced errors so far in this set - Zverev has made 12!
Zverev 3-6 0-3 Carreno Busta*
PCB produces arguably his best winner of the match - an absolute rocket of a forehand down the line.
Exceptional.
Leon Smith
GB Davis Cup captain on BBC Radio 5 Live Sports Extra
I hate watching it when Zverev gets like this. I really feel for him. He's such a good player but his serve is really holding him back.