The big names are out for the men's semi-finals as golf star Greg Norman and acting legend Jack Nicholson watch Rafael Nadal play Juan Martin del Potro on Arthur Ashe Stadium
Actors Stuart Townsend and Charlize Theron and Vogue editor Anna Wintour are also at Flushing Meadows for a packed day of action
After two days of rain interruptions the New York crowd is able to enjoy bright sunshine on day 14 of the tournament
Del Potro may be trying to reach his first Grand Slam final but he shows no sign of nerves as he dominates Nadal from the outset
The 20-year-old Argentine sixth seed is overwhelmed after he powers to a 6-2 6-2 6-2 win in two hours and 20 minutes
It is the third straight win for Del Potro over Nadal after victories in Miami and Montreal already this year
Nadal is left to contemplate another year without lifting the US Open title, having lost to Andy Murray in the semis 12 months ago
The stars just keep on coming - Justin Timberlake joins the party on Ashe as we prepare for Roger Federer against Novak Djokovic
And Ben Stiller is hiding behind a goatee beard as he takes in the second of the men's semi-finals
The evening draws in as Federer and Djokovic face each other for the third year in a row at Flushing Meadows
Djokovic feels he is not getting the best of the line calls as umpire Norm Chryst chooses to overrule
And after taking a pummelling from Federer at the net, Djokovic turns the other cheek to let the Swiss seal one point uncontested
Federer is too good for Djokovic in the key moments but saves the best for last, getting to match point with a ridiculous winner through his legs
Federer completes a 7-6 (7-3) 7-5 7-5 win over Djokovic as he closes in on a record-equalling sixth consecutive US Open title and a 16th Grand Slam crown
All the stops are pulled out on Arthur Ashe Stadium as we await the final action of day 14
Belgian wildcard Kim Clijsters takes on Danish ninth seed Caroline Wozniacki in the final of the women's singles
The scrambling skills of Wozniacki are to the fore on a windy night in New York and she recovers from an early break of serve
Wozniacki twice moves a break up and serves for the opening set at 5-4
But Clijsters breaks back and reels off three games in a row to win the first set 7-5
The blustery wind makes consistent hitting difficult for both players but the Clijsters forehand remains a potent weapon
Clijsters gets the decisive break to lead 4-2 in the second set and just needs two solid service games to take the title
Clijsters holds her nerve to seal a 7-5 6-3 victory with a smash - before the emotion overtakes her
The new champion heads into the stands to celebrate with friends and family, including husband Brian Lynch
Wozniacki must settle for second place in her debut Grand Slam final as Clijsters regains the trophy she won in 2005
The night ends with Clijsters joined by husband Brian and daughter Jada as the trophy is paraded around Arthur Ashe Stadium
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