Good evening. Players out warming up then ahead of the opening game of this quarter-final match in New York.

GAME, SET AND MATCH FERRER 7-4 Points go on serve until 3-3 with Ferrer scampering to level before Tipso knocks a backhand into the net from deep. Another chance for Tipsarevic, but he crushes a backhand into the net off a Ferrer forehand as the Spaniard eases 4-3 clear before Ferrer wins the next point with Tipso slowing up at the back of the court. A 5-3 lead with the mini-break becomes 6-4 in favour of Ferrer. He scrambles over the line as Tipso whacks a ball into the net. A superb match.

6-6 - A standing ovation from the crowd on Arthur Ashe as Ferrer enjoys a comfortable hold to force the final breaker. Dropped one point with a double fault. Here we go then. All on the line. This match well and truly in the melting pot.

TIPSAREVIC 6-5 - Real gladitorial stuff. These men will have to be scraped off the court. Just when you think one has the upper hand, the other man comes roaring back. Going for four hours and 17 minutes. Ferrer had the chance leading 30-15 on the Tipso serve, but was snuffed out after missing the forehand. Back over to Ferrer.

5-5 - Ferrer digging incredibly deep to rescue what looked like a match-losing situation after a ball skipped off the net and sped beyond him. Ferrer showing real heart to survive that game and come through with his serve intact. Both men displaying giant will to win out there which is commendable. Ferrer has won 160 points to 150 from Tipso. That is how close they are.

TIPSAREVIC 5-4 - Tipsarevic seems to be cramping at the wrong moments. Or else he has suffered a groin injury. Has to get a bandage applied trailing 15-40, but somehow drags himself back to deuce. His body looks on the edge of collapse here. Ferrer still bouncing around. A big first serve from Tipso carries him to advantage. He then comes up with an ace on the line to dig himself out of a tight hole. No groin injury then. Just cramp. Amazing. A 5-4 lead now.

4-4 - At 0-30 a second serve was on the line in Ferrer's previous service game. That might have just saved his bacon in this match. Ferrer comes up with the goods to restory parity in the set from 4-1 down and in the match. This match could fall anyway now. All or nothing for both of these warriors now.

BREAK FERRER! A huge change in the momentum of this match as Ferrer dashes back to his chair to sit down after breaking back. Brilliant stuff. A superb lob brought up two break points before Tipsarevic clubs a backhand wide from the back of the court. This match swinging one way and then the next. How exciting is this match.

TIPSAREVIC 4-2 - A real scare for the Serbian player as he takes a bad tumble at the end of that game. Was a chance of the double break, but Ferrer is not for slipping quietly into the night. Thankfully, Tipso is back on his feet quite quickly. Huge game coming up.

TIPSAREVIC 4-1 - Tipsarevic wins one point that he has no right to win with a brilliant lob over the head of Ferrer from outside of the tramlines. That gives him the platform for another hold and suddenly the Serbian player is within two games of a famous win. Coming on strong here at just the right time.

TIPSAREVIC 3-1 - Ferrer comes up with a love game just when he needed it most. Ferrer will need to start swinging at the ball here. Needs to take a few chances to place some doubt in the mind of Tipsarevic otherwise this set is going to run away from him.

TIPSAREVIC 3-0 - Halfway to heaven here for Tipso. Closing in on a semi-final date against either Novak Djokovic or Juan Martin Del Potro, a match that you can follow with us from 12am tonight/tomorrow morning. Another aggressive game from Tipsarevic. Ferrer staring down the barrel here.

BREAK TIPSAREVIC 2-0 - Dangerous moments for Ferrer at 30-30, but the little Spaniard digs himself out of a hole with a booming first serve that Tipsarevic can't return. Ferrer short with a second serve and can't get the ball back on the backhand side. Tipso comes to the net to convert an overhead before dominating the next point with a series of crunching backhands. Inspired play by Tipsarevic. He will serve with the break.

TIPSAREVIC 1-0 - Ferrer just fails to convert the first of two break points at the net after reading Tipsarevic's attempt at a drop shot. Ferrer then bludgeons a return of serve into the net from the second serve of the Serbian. Glorious chance squandered. And Tipso makes him pay with a brilliant forehand winner down the line. Not afraid to swing at the ball and his courage pays off. On the board first in this final set.

SET FERRER 6-3 - Could probably have scripted this some three hours and nine minutes ago, but we are heading for the deciding set with neither man appearing ready to wilt. It is all on the line and would be difficult to predict with any great certainty how this is going to unravel. Ferrer has gone favourite at 4/11 with Tipsarevic priced at 2/1.

BREAK FERRER 5-3! Going for three hours. Brilliant defence by Tipsarevic to level at 30-30 after Ferrer had walloped a couple of fierce forehands at him from deep. Tipsarevic pulls a backhand wide seconds. Chance for the break for Ferrer. An ace for Tipso and he draws level at deuce. Another ace carries Tipso to advantage, but he misses a routine-ish forehand from deep seconds later. Ferrer gets the better of a 22-shot rally to bring up the break which he achieves. Ferrer can level the match now

FERRER 4-3 Ferrer really finding some venom on those forehands. Slaps one effort wide of the target leading 40-15, but has no similar problems seconds later as he comes up with a tough overhead winner to move ahead by the odd game in seven.

3-3 - Tipsarevic continues to torment Ferrer with that double-handed backhand. As flat as you like it, and Ferrer is not liking it as another game ambles by with the Serbian holding to love. This is highly impressive stuff from both men. Difficult to detect yet where this match is going to land.

FERRER 3-2 - Ferrer's service game has generally stood up well today in spite of the baseline bullets Tipsarevic threw at him in the third set. Another vital hold with the ace count up to 14 for Ferrer now. Nine more than his opponent.

2-2 - Tipsarevic comes up with four first serves to snuff out the immediate threat of Ferrer in that game. Nothing Ferrer could do there. A fine hold from Tipsarevic, who continues to keep his momentum and focus at the right time.

FERRER 2-1 - Ferrer comes up with a big first serve before a couple of pumelling drives save two break points. Tipsarevic causing Ferrer no end of consternation with some clubbing blows hitting all the right spots. Ferrer does brilliantly to resist with an ace seeing out the game. Chance for Tipsarevic slips by. 2-1 to Ferrer in this fourth set.