Richard Gasquet of France plays a forehand during his men's singles quarterfinal match against David Ferrer of Spain. (Photo by Al Bello/Getty Images)
2013 US Open - Day 10
David Ferrer of Spain plays a forehand during his men's singles quarterfinal match against Richard Gasquet of France. (Photo by Clive Brunskill/Getty Images)
2013 US Open - Day 10
Fans watch Andy Murray of Great Britain in action next to Dani Vallverdu (R) during a practice session. (Photo by Dan Istitene/Getty Images)
2013 US Open - Day 10
David Ferrer of Spain serves during his men's singles quarterfinal match against Richard Gasquet of France. (Photo by Joe Scarnici/Getty Images)
2013 US Open - Day 10
Richard Gasquet of France celebrates match point after his men's singles quarterfinal match against David Ferrer of Spain. (Photo by Elsa/Getty Images)
2013 US Open - Day 10
David Ferrer of Spain plays a forehand during his men's singles quarterfinal match against Richard Gasquet of France. (Photo by Elsa/Getty Images)
2013 US Open - Day 10
Frederico Ferreira Silva of Portugal serves next to his partner Quentin Halys of France during their boys' doubles second-round match against Yoshihito Nishioka of Japan and Jorge Panta of Peru. (Photo by Matthew Stockman/Getty Images)
2013 US Open - Day 10
Flavia Pennetta of Italy celebrates her 6-4, 6-1 win over Roberta Vinci of Italy. (Photo credit should read STAN HONDA/AFP/Getty Images)
2013 US Open - Day 10
Roberta Vinci of Italy plays a forehand during her women's singles quarterfinal match against Flavia Pennetta of Italy. (Photo by Al Bello/Getty Images)
2013 US Open - Day 10
Ivan Dodig of Croatia stretches for the ball next to his partner Marcelo Melo of Brazil during their men's doubles quarterfinal match against Treat Huey of Philippines and Dominic Inglot of Great Britain. (Photo by Al Bello/Getty Images)
2013 US Open - Day 10
Flavia Pennetta of Italy after winning against Roberta Vinci of Italy (10) during their 2013 US Open women's singles quarterfinal match at the USTA Billie Jean King National Tennis Center. (Photo credit should read TIMOTHY CLARY/AFP/Getty Images)
2013 US Open - Day 10
Serena Williams and Venus Williams of the United States of America in action during their women's doubles third-round match against Anastasia Pavlyuchenkova of Russia and Lucie Safarova of Czech Republic. (Photo by Matthew Stockman/Getty Images)
2013 US Open - Day 10
Roberta Vinci of Italy returns a shot to Flavia Pennetta of Italy during their 2013 US Open women's singles quarterfinal match. (Photo credit should read STAN HONDA/AFP/Getty Images)
2013 US Open - Day 10
David Ferrer of Spain plays a forehand during his men's singles quarterfinal match against Richard Gasquet of France. (Photo by Clive Brunskill/Getty Images)
2013 US Open - Day 10
Andy Murray of Great Britain smiles during a practice session. (Photo by Dan Istitene/Getty Images)