Spain's Rafael Nadal celebrates winning his Davis Cup semifinal match against France's Jo-Wilfried Tsonga on Sept. 18, 2011 at Cordoba's bullring in southern Spain. Rafael Nadal secured the winning point to give Spain a 3-1 victory over France and a place in the Davis Cup final.

France's Jo-Wilfried Tsonga reacts during his Davis Cup semifinal match against Spain's Rafael Nadal on Sept. 18, 2011 at Cordoba's bullring. Rafael Nadal secured the winning point with a convincing 6-0, 6-2, 6-4 win over Tsonga to give Spain a 3-1 victory over France and a place in the Davis Cup final.

Serbia's Novak Djokovic reacts after injuring himself during his World Group Davis Cup semifinals tennis match against Juan Martin del Potro of Argentina. Djokovic retired from the match to give Argentina the win and a spot in the Davis Cup final against Spain.
 

Novak Djokovic of Serbia reacts after retiring from a match against Juan Martin del Potro of Argentina at the World Group Davis Cup semifinals in Belgrade, Sept. 18. Djokovic retired from the match after suffering an injury in the second set. Argentina won the overall duel and will face Spain in the Davis Cup final.

Argentina's Juan Martin del Potro (center) cheers with his teammates after winning a Davis Cup semifinal match against Serbia's Novak Djokovic at Belgrade Arena. Djokovic retired in pain, giving del Potro the win and sending Argentina to the Davis Cup final.

Belgian fans cheer on the Belgium players during the Davis Cup World Group playoff match against Austria in Antwerp.
 

Australian captain Pat Rafter, right, argues with match referee Javier Mareno over conditions during the singles match between Switzerland's Stanislas Wawrinka and Australia's Lleyton Hewitt, bottom, in a Davis Cup world group playoff in Sydney on Sunday, Sept. 18. Play was suspended due to poor light as Switzerland was leading 4-6, 6-4, 6-7, 6-4, 5-3, and will continue Monday.
 

Japan's Kei Nishikori stretches for a return aganist Vishnu Vardhan of India during their Davis Cup tennis competition world group playoff in Tokyo on Sept. 18, 2011. Nishikori, ranked No. 55 in the world coasted to a 7-5, 6-3, 6-3 victory to secure Japan's berth in the World Group.

Switzerland's Roger Federer, second right, and Stanislas Wawrinka, right, prepare to shake hands with Australia's Lleyton Hewitt, second left, and Chris Guccinone at the end of their doubles tennis match in a Davis Cup world group playoff in Sydney, Saturday, Sept. 17. Australia won the doubles 2-6, 6-4, 6-2, 7-6 to take a 2-1 lead.
 

Tomas Berdych, foreground, reacts after winning a Davis Cup World Group playoff doubles match with partner Radek Stepanek in Bucharest, Romania. Czech Republic leads Romania 3-0 at the end of the second day.
 

Serbia's Viktor Troicki (right) and and his doubles partner Nenad Zimonjic celebrate a point during their World Group Davis Cup semifinals doubles match against Juan Ignacio Chela and Juan Monaco of Argentina in Belgrade, Serbia. Down 2-0, Troicki and Zimonjic won the match, necessitating singles play on Sunday.
 

Switzerland's Roger Federer, right, and Stanislas Wawrinka both run to the back of the court while playing against Australia's Lleyton Hewitt and Chris Guccinone during their doubles match in Sydney. Australia won the doubles 2-6, 6-4, 6-2, 7-6 to take a 2-1 lead.
 

India's Rohan Bopanna, left, returns the ball as Mahesh Bhupathi looks on during their Davis Cup World Group Playoff match against Japan in Tokyo. India won to trail 2-1.
 

Argentina's Juan Monaco (right) and Juan Ignacio Chela discuss tactics ahead of a serve against Serbia's Viktor Troicki and Nenad Zimonjic during their Davis Cup semifinal tennis doubles match. It didn't seem to matter as Serbia won in straight sets to stave off elimination.

Former world No. 1 Lleyton Hewitt of Australia plays a backhand during his doubles match aginst the Swiss team of Roger Federer and Stanislas Wawrinka.

Spain's Rafael Nadal seems to be in pain here while playing a backhand during Davis Cup play against France's Richard Gasquet on Friday. Of course, Nadal was fine and went on to defeat Gasquet easily to give his country a 2-0 lead on the Cup's first day in front of the home fans.

Serbia's Viktor Troicki, standing in for the missing Novak Djokovic, wasn't able to overcome Argentinian David Nalbandian during their Davis Cup semifinal match on Friday. The loss contributed to the defending champions falling in a 2-0 hole to the Argentinians despite playing in their home country.

Frenchman Richard Gasquet took his best shot at Spain's Rafael Nadal, but it was nowhere near enough to beat the world's No. 2 player. Gasquet only managed to win four games in a three-set laugher, putting France behind the Spaniards 2-0 heading into doubles play Saturday.

Serbia's Janko Tipsarevic needed a win to even his country at 1-1 with Argentina, but Juan Martin del Potro was too much for him in their semifinal match Friday at Belgrade Arena.

Argentina's David Nalbandian lets out a shout after scoring a point against Serbia's Viktor Troicki during their Davis Cup match on Friday. Nalbandian took down the Serbian substitute in four sets.

Gilles Simon of France slides on the clay to return shot of Spain's David Ferrer during their Davis Cup match Spain on Friday. Simon couldn't keep up with Ferrer, however, losing in straight sets as the French dropped both matches on the first day of the semifinals.

Spain's David Ferrer lost just six games in three sets during his Davis Cup match against Frenchman Gilles Simon in Cordoba, Spain, on Friday.

Juan Martin del Potro of Argentina had his way with Janko Tipsarevic of Serbia during their Davis Cup semifinal match on Friday. The Argentinians took the 2-0 lead over the host Serbians, who were without the world's No. 1 player and US Open champion, Novak Djokovic.

Spain's Rafael Nadal battles France's Richard Gasquet during Davis Cup semifinal action being played in the bullring in Cordoba, Spain.