Postpublished at 23:31 BST 11 September 2020
Zverev 3-6 2-6 6-3 1-1 Carreno Busta*
It's saved as the German goes long but an error on the forehand from PCB brings up another.
What this time?
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 2-6 6-3 1-1 Carreno Busta*
It's saved as the German goes long but an error on the forehand from PCB brings up another.
What this time?
Leon Smith
GB Davis Cup captain on BBC Radio 5 Live Sports Extra
Never, ever give up because you don't know how the other player is feeling. Andy Murray is the epitome of that.
In the best of five sets you have time. Zverev could not have played any worse than he did in the first two sets - he was awful.
Zverev 3-6 2-6 6-3 1-1 Carreno Busta*
Carreno Busta's service games are now taking longer - in sharp contrast to earlier in the match.
A forehand error brings up another break point for Zverev. His 13th.
Zverev 3-6 2-6 6-3 1-1 Carreno Busta*
Another easy hold for the German. Cruising at the moment.
From a three-set win for PCB, it has the makings of a five-setter now.
*Zverev 3-6 2-6 6-3 0-1 Carreno Busta
Zverev's arm is a lot looser now. PCB races to the net to try to play an around the net shot - but fails.
Good attempt though.
30-0.
Leon Smith
GB Davis Cup captain on BBC Radio 5 Live Sports Extra
Imagine the nerves, the tension. It's fascinating to watch with my coach's hat on. Brad Gilbert wrote a book on this called 'Winning Ugly'.
*Zverev 3-6 2-6 6-3 0-1 Carreno Busta
The Spaniard gets a grip of himself - not literally - and forces a forehand error from his bandana'd opponent.
A very good hold in the circumstances.
Zverev 3-6 2-6 6-3 0-0 Carreno Busta*
PCB's is certainly struggling a little more than he was. Yes. Zverev has improved, but not markedly.
Anyway, break point saved.
Zverev 3-6 2-6 6-3 0-0 Carreno Busta*
But a double-handed backhand then loops in between the lines.
Break point for Zverev. Remarkable!
Zverev 3-6 2-6 6-3 0-0 Carreno Busta*
30s each as Carreno Busta finally rediscovers his opponent's weaker forehand.
Leon Smith
GB Davis Cup captain on BBC Radio 5 Live Sports Extra
Zverev was two sets up, and having an absolute shocker, and then turns it around in the third set.
Four aces, no double faults, decent percentage of first serves in, good winning percentage on first and second serves, more winners - so extremely dominant.
If I had to pick a winner right now I would say Zverev because he has more in his game.
Image source, ReutersZverev 3-6 2-6 6-3 Carreno Busta*
He's been here so many times in recent years in big matches - unlike his opponent. A hold to love and the third set belongs to Zverev.
Game back on.
*Zverev 3-6 2-6 5-3 Carreno Busta
The Spaniard ends the game with a glorious flat forehand winner.
Has the mojo been rediscovered?
Zverev 3-6 2-6 5-2 Carreno Busta*
The 29-year-old opens up with a double fault.
Not ideal.
Zverev 3-6 2-6 5-2 Carreno Busta*
This hasn't been the greatest of matches. Neither men are playing anywhere near their best.
It's hard to predict who will come out on top.
Leon Smith
GB Davis Cup captain on BBC Radio 5 Live Sports Extra
We have seen Busta getting uptight, he's not as free-flowing as he was earlier in the match, and I wouldn't be surprised if this goes on a while longer.
Zverev looks completely different now and it's game on.
Zverev 3-6 2-6 5-2 Carreno Busta*
Two huge serves - including an ace - a backhand winner and an error from the Spaniard and the German remains firmly in the driving seat
*Zverev 3-6 2-6 4-2 Carreno Busta
Break point!!
Two backhand errors and Zverev breaks once more.
Can he now hold? This next game is huuuuuge!
Zverev 3-6 2-6 3-2 Carreno Busta*
0-30 before a forehand error and then a gorgeous crosscourt backhand winner sees PCB level.
Lovely racquet-work.
Zverev 3-6 2-6 3-2 Carreno Busta*
A mid-length rally. PCB challenges after the point is called out. The computer says it was in. We go once more.
0-15.