NEW YORK, NY - SEPTEMBER 08: Rain falls on center court in Arthur Ashe stadium to suspend play on Day Thirteen of the 2012 US Open at USTA Billie Jean King National Tennis Center on September 8, 2012 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)
2012 US Open - Day 13
NEW YORK, NY - SEPTEMBER 08: Fans hold umbrellas as rain falls on Day Thirteen of the 2012 US Open at USTA Billie Jean King National Tennis Center on September 8, 2012 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Alex Trautwig/Getty Images)
2012 US Open - Day 13
Great Britain's Andy Murray plays a point against the Czech Republic's Tomas Berdych during the 2012 US Open men's singles semifinals match at the USTA Billie Jean King National Tennis Center in New York on September 08, 2012. AFP PHOTO/Emmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/GettyImages)
TEN-US OPEN-BERDYCH-MURRAY
The Czech Republic's Tomas Berdych plays a point against Great Britain's Andy Murray during the 2012 US Open men's singles semifinals match at the USTA Billie Jean King National Tennis Center in New York on September 08, 2012. AFP PHOTO/Emmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/GettyImages)
TEN-US OPEN-BERDYCH-MURRAY
Great Britain's Andy Murray dries off during the men's singles semifinals match against Czech Republic's Tomas Berdych during the 2012 US Open at the USTA Billie Jean King National Tennis Center in New York on September 08, 2012. AFP PHOTO/Emmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/GettyImages)
TEN-US OPEN-BERDYCH-MURRAY
Great Britain's Andy Murray plays a point against the Czech Republic's Tomas Berdych during the 2012 US Open men's singles semifinals match at the USTA Billie Jean King National Tennis Center in New York on September 08, 2012. AFP PHOTO/Emmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/GettyImages)
TEN-US OPEN-BERDYCH
Tomas Berdych of the Czech Republic celebrates winning the first set against Andy Murray of Great Britain during their men's singles semifinal match at the 2012 US Open tennis tournament September 8, 2012 in New York. AFP PHOTO/DON EMMERT (Photo credit should read DON EMMERT/AFP/GettyImages)
TEN-US OPEN-MURRAY
Andy Murray of Great Britain throws his racquet in the first set against Tomas Berdych of the Czech Republic during their men's singles semifinal match at the 2012 US Open tennis tournament September 8, 2012 in New York. AFP PHOTO/DON EMMERT (Photo credit should read DON EMMERT/AFP/GettyImages)
2012 US Open - Day 13
NEW YORK, NY - SEPTEMBER 08: Rain falls on center court in Arthur Ashe stadium to suspend play on Day Thirteen of the 2012 US Open at USTA Billie Jean King National Tennis Center on September 8, 2012 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)
2012 US Open - Day 13
NEW YORK, NY - SEPTEMBER 08: Andy Murray of Great Britain celebrates match point during his men's singles semifinal match against Tomas Berdych of Czech Republic on Day Thirteen of the 2012 US Open at USTA Billie Jean King National Tennis Center on September 8, 2012 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)
2012 US Open - Day 13
NEW YORK, NY - SEPTEMBER 08: David Ferrer of Spain serves during his men's singles semifinal match against Novak Djokovic of Serbia on Day Thirteen of the 2012 US Open at USTA Billie Jean King National Tennis Center on September 8, 2012 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Clive Brunskill/Getty Images)
TEN-US OPEN-FERRER-DJOKOVIC
Novak Djokovic of Serbia (2) plays against David Ferrer of Spain (4) during their 2012 US Open men's singles semifinals match at the USTA Billie Jean King National Tennis Center in New York on September 8, 2012. Play has been suspended because of bad weather. AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/GettyImages)
2012 US Open - Day 13
NEW YORK, NY - SEPTEMBER 08: Andy Murray of Great Britain reacts during his men's singles semifinal match against Tomas Berdych of Czech Republic on Day Thirteen of the 2012 U.S. Open at the USTA Billie Jean King National Tennis Center on September 8, 2012 in the Flushing neighborhood, of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images for USTA)
2012 US Open - Day 13
NEW YORK, NY - SEPTEMBER 08: Andy Murray of Great Britain reacts during his men's singles semifinal match against Tomas Berdych of Czech Republic on Day Thirteen of the 2012 U.S. Open at the USTA Billie Jean King National Tennis Center on September 8, 2012 in the Flushing neighborhood, of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images for USTA)
2012 US Open - Day 13
NEW YORK, NY - SEPTEMBER 08: Andy Murray of Great Britain returns a shot during his men's singles semifinal match against Tomas Berdych of Czech Republic on Day Thirteen of the 2012 U.S. Open at the USTA Billie Jean King National Tennis Center on September 8, 2012 in the Flushing neighborhood, of the Queens borough of New York City. (Photo by Chris Trotman/Getty Images for USTA)