Djokovic 4-3 Ferrer
The game looks done and dusted when Ferrer thumps down what looks like an ace at 40-15 but Djokovic challenges, and it's correct. Suddenly the momentum is back with the third seed and he breaks when Ferrer pulls a forehand wide.
Djokovic 3-3 Ferrer
Djokovic does well to hold serve as he is clearly struggling, while Ferrer looks up for the long haul. Djokovic steers a volley at deuce and Ferrer almost makes him pay, a net cord just taking the ball out, before the Serb comes through with a much sharper volley.
Djokovic 2-3 Ferrer
It's still early days but Djokovic has been in two Grand Slam semi-finals this year and been found wanting physically, being overpowered by Nadal in Paris and then retiring against the Spaniard at Wimbledon. Ferrer holds to 15.
Djokovic 2-2 Ferrer
The ice towel has some effect as Djokovic moves to game point but Ferrer is able to prolong the following rallies and Djokovic struggles. The Serb scrambles to get to a backhand when break point down and puts it long.
1820: Uh-oh. Djokovic calls for the trainer, the doctor and an ice towel as the heat is clearly starting to bother him. The doc hands over a couple of pills and Djokovic returns to the action.
Djokovic 2-1 Ferrer
Djokovic looks to be blowing a bit after that previous game and dons a white cap to give him some protection on a hot afternoon. It looks to be working when he takes the first two points but Ferrer hangs on.
Djokovic 2-0 Ferrer
It's so often the way, isn't it? You do all the hard work and then relax a little bit too much. Djokovic almost comes a cropper but forces an error when facing break point. He needs several deuces in the longest game of the match but does well to hold.
Djokovic 1-0 Ferrer
The Djokovic forehand is getting bigGer and bigger. Ferrer is in real danger at 0-30 but hauls himself back to game point, before a punishing rally of huge hitting is brought to an end by another big Djokovic forehand. Ferrer then fails to deal with some heavy slice and nets a forehand, but Djokovic goes long with the backhand on break point. Another chance comes along and this time the Serb runs down a drop shot and puts away a.... forehand.
Djokovic 6-4 Ferrer
Djokovic completes the turnaround with his fifth straight game in stunning style. The backhand that was faltering only a few minutes ago is now working beautifully and he wraps up the set with a drive volley.
Djokovic 5-4 Ferrer
Djokovic tries another drop shot but this time Ferrer runs it down and hits a winner. The pressure remains on the Spaniard though and at 30-30 he puts a regulation backhand long. Djokovic needs only one break point, firing a backhand up the line that Ferrer cannot handle.
Djokovic 4-4 Ferrer
After a slow start Djokovic is motoring now and he glides into the net before angling away a backhand volley for 40-0, taking the game with a big serve on the next point. Three love games in a row.
Djokovic 3-4 Ferrer
Ferrer has gone from De Niro to Mickey Blue Eyes. The Spaniard does some excellent scampering on the second point but to no avail and a couple of huge forehands then help Djokovic to 0-40 and three break points. The best forehand of the lot then follows, cross-court, and the Serb is back on serve.
Djokovic 2-4 Ferrer
Djokovic gets back on track with a love hold of his own.
Djokovic 1-4 Ferrer
Ferrer is looking as ruthless as De Niro in Goodfellas, 'whacking' down an ace for a love game.
Djokovic 1-3 Ferrer
Djokovic opens up with a ridiculous drop shot from behind the baseline that just sneaks over the net and he holds to 15 to get off the mark. And Robert De Niro is in the crowd, hidden under a fishing hat. Maybe he's a big David Ferrer fan.
Djokovic 0-3 Ferrer
Ferrer is in the groove now and Djokovic is struggling to keep pace, firing one forehand way outside the tram lines.
Djokovic 0-2 Ferrer
Djokovic is under pressure after a double fault and a backhand error. Ferrer absolutely hammers a forehand moments later to get to 15-40 and two break points, and another sloppy Djokovic backhand gives up the break.
Djokovic 0-1 Ferrer
It's another sunny, blustery day at Flushing Meadows and the Arthur Ashe Stadium is yet to fill up. The late arrivals miss some beautiful forehands that get Djokovic to 0-30 up and he soons earns the first break point of the day, but Ferrer comes up with a service winner and goes on to hold.
1714: Forget the football, ignore the rugby, the cricket's over, and tear yourself away from the gymnastics - this is the place to be. We have two players trying to reach their first Grand Slam final.
Ferrer has a 2-1 lead in career meetings but that does not tell the whole story, as both the Spaniard's wins came on clay and the first was in 2004 when Djokovic was just 17.
The Serb's win came on hard courts in Indian Wells this year and he has rocketed to number three in the world, reaching the semis at the French Open and Wimbledon.
But Ferrer has been in a rich vein of form in New York, beating Rafael Nadal on his way to a first Grand Slam semi-final.