Nadia Petrova of Russia watches a ball during a practice session in Melbourne, 14 January 2007, ahead of the forthcoming Australian Open tournament. AFP PHOTO/Paul CROCK (Photo credit should read PAUL CROCK/AFP/Getty Images)
Nadia Petrova of Russia celebrates her victory over Tamarine Tanasugarn of Thailand in their women's singles first round match at the Australian Open tennis tournament in Melbourne, 15 January 2007. Petrova won 6-3, 6-2. AFP PHOTO / DEAN TREML (Photo credit should read DEAN TREML/AFP/Getty Images)
Nadia Petrova of Russia hits a return against Tamarine Tanasugarn of Thailand in their women's singles first round match at the Australian Open tennis tournament in Melbourne, 15 January 2007. Petrova won 6-3, 6-2. AFP PHOTO / DEAN TREML (Photo credit should read DEAN TREML/AFP/Getty Images)
MELBOURNE, AUSTRALIA - JANUARY 17: Nadia Petrova of Russia serves during her second round match against Gisela Dulko of Argentina on day three of the Australian Open 2007 at Melbourne Park on January 17, 2007 in Melbourne, Australia. (Photo by Cameron Spencer/Getty Images) *** Local Caption *** Nadia Petrova
MELBOURNE, AUSTRALIA - JANUARY 17: Nadia Petrova of Russia celebrates winning a point during her second round match against Gisela Dulko of Argentina on day three of the Australian Open 2007 at Melbourne Park on January 17, 2007 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images) *** Local Caption *** Nadia Petrova
MELBOURNE, AUSTRALIA - JANUARY 17: Nadia Petrova of Russia plays a backhand during her second round match against Gisela Dulko of Argentina on day three of the Australian Open 2007 at Melbourne Park on January 17, 2007 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images) *** Local Caption *** Nadia Petrova
MELBOURNE, AUSTRALIA - JANUARY 19: Nadia Petrova of Russia plays a backhand during her third round match against Serena Williams of the USA on day five of the Australian Open 2007 at Melbourne Park on January 19, 2007 in Melbourne, Australia. (Photo by Phil Walter/Getty Images) *** Local Caption *** Nadia Petrova
Russia's Nadia Petrova reacts during her third round match against Serena Williams of the U.S. at the Australian Open tennis tournament in Melbourne.
MELBOURNE, AUSTRALIA - JANUARY 19: Nadia Petrova of Russia shows her frustration during her third round match against Serena Williams of the USA on day five of the Australian Open 2007 at Melbourne Park on January 19, 2007 in Melbourne, Australia. (Photo by Phil Walter/Getty Images) *** Local Caption *** Nadia Petrova
MELBOURNE, AUSTRALIA - JANUARY 19: Nadia Petrova of Russia plays a backhand during her third round match against Serena Williams of the USA on day five of the Australian Open 2007 at Melbourne Park on January 19, 2007 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images) *** Local Caption *** Nadia Petrova
