Chilean Fernando Gonzalez waves after losing the tennis match third round against Argentinian tennis player Juan Martin Del Potro on November 12, 2009 at the ATP Paris Indoor Master tournament. AFP PHOTO/JACQUES DEMARTHON (Photo credit should read JACQUES DEMARTHON/AFP/Getty Images)

Fernando Gonzalez of Chile receives tennis balls for his serve against Nikolay Davydenko of Russia in their third round match at the ATP Shanghai Masters tennis tournament in Shanghai on October 15, 2009. Davydenko won 6-3, 7-5. AFP PHOTO / PHILIPPE LOPEZ (Photo credit should read PHILIPPE LOPEZ/AFP/Getty Images)

Fernando Gonzalez of Chile hits a return against Nikolay Davydenko of Russia in their third round match at the ATP Shanghai Masters tennis tournament in Shanghai on October 15, 2009. Davydenko won 6-3, 7-5. AFP PHOTO / PHILIPPE LOPEZ (Photo credit should read PHILIPPE LOPEZ/AFP/Getty Images)

Fernando Gonzalez of Chile hits a return against Nikolay Davydenko of Russia in their third round match at the ATP Shanghai Masters tennis tournament in Shanghai on October 15, 2009. Davydenko won 6-3, 7-5. AFP PHOTO / PHILIPPE LOPEZ (Photo credit should read PHILIPPE LOPEZ/AFP/Getty Images)

Fernando Gonzalez of Spain hits a forehand return against Mischa Zverev of Germany during first round action at the Shanghai ATP Masters in Shanghai on October 12, 2009. Gonzalez won the match after winning the first set 7-5, with Zverev winning the second set 7-6 (7/0) and then retiring due to injury in the third set at 2-2. AFP PHOTO/Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

Fernando Gonzalez of Spain hits a forehand return against Mischa Zverev of Germany during first round action at the Shanghai ATP Masters in Shanghai on October 12, 2009. Gonzalez won the match after winning the first set 7-5, with Zverev winning the second set 7-6 (7/0) and then retiring due to injury in the third set at 2-2. AFP PHOTO/Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

Fernando Gonzalez of Spain hits a forehand return against Mischa Zverev of Germany during first round action at the Shanghai ATP Masters in Shanghai on October 12, 2009. Gonzalez won the match after winning the first set 7-5, with Zverev winning the second set 7-6 (7/0) and then retiring due to injury in the third set at 2-2. AFP PHOTO/Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

Fernando Gonzalez of Spain hits a forehand return against Mischa Zverev of Germany during first round action at the Shanghai ATP Masters in Shanghai on October 12, 2009. Gonzalez won the match after winning the first set 7-5, with Zverev winning the second set 7-6 (7/0) and then retiring due to injury in the third set at 2-2. AFP PHOTO/Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

Fernando Gonzalez of Chile reaches for the ball against Mischa Zverev of Germany in their first round match at the ATP Shanghai Masters tennis tournament in Shanghai on October 12, 2009. Zverev won the first set and Gonzalez the second as the match went on. AFP PHOTO / PHILIPPE LOPEZ (Photo credit should read PHILIPPE LOPEZ/AFP/Getty Images)

Fernando Gonzalez of Chile eyes the ball against Mischa Zverev of Germany in their first round match at the ATP Shanghai Masters tennis tournament in Shanghai on October 12, 2009. Zverev won the first set and Gonzalez the second as the match went on. AFP PHOTO / PHILIPPE LOPEZ (Photo credit should read PHILIPPE LOPEZ/AFP/Getty Images)

A spectator holds on to the broken racket of Fernando Gonzalez of Chile during the latter's semi-final match against Fernando Verdasco of Spain at the Malaysia Open tennis tournament at the Putra Stadium in Kuala Lumpur on October 3, 2009. AFP PHOTO/KAMARUL AKHIR (Photo credit should read KAMARUL AKHIR/AFP/Getty Images)

Fernando Gonzalez of Chile reacts after a point against Fernando Verdasco of Spain during their semi-final match at the Malaysia Open tennis tournament at the Putra Stadium in Kuala Lumpur on October 3, 2009. AFP PHOTO/KAMARUL AKHIR (Photo credit should read KAMARUL AKHIR/AFP/Getty Images)

Fernando Gonzalez of Chile returns to Fernando Verdasco of Spain during their semi-final match at the Malaysia Open tennis tournament at the Putra Stadium in Kuala Lumpur on October 3, 2009. AFP PHOTO/KAMARUL AKHIR (Photo credit should read KAMARUL AKHIR/AFP/Getty Images)

Fernando Gonzalez of Chile walks from the court with a broken racket during his semi-final match Fernando Verdasco of Spain at the Malaysia Open tennis tournament at the Putra Stadium in Kuala Lumpur on October 3, 2009. AFP PHOTO/KAMARUL AKHIR (Photo credit should read KAMARUL AKHIR/AFP/Getty Images)

Fernando Gonzalez of Chile reacts after a point against Fernando Verdasco of Spain during their semi-final match at the Malaysia Open tennis tournament at the Putra Stadium in Kuala Lumpur on October 3, 2009. AFP PHOTO/KAMARUL AKHIR (Photo credit should read KAMARUL AKHIR/AFP/Getty Images)

Fernando Gonzalez of Chile returns to Fernando Verdasco of Spain during their semi-final match at the Malaysia Open tennis tournament at the Putra Stadium in Kuala Lumpur on October 3, 2009. AFP PHOTO/KAMARUL AKHIR (Photo credit should read KAMARUL AKHIR/AFP/Getty Images)