Flavia Pennetta of Italy returns a shot against Amelie Mauresmo of France during the third round of the Sony Ericsson Open at the Crandon Park Tennis Center on March 29, 2009 in Key Biscayne, Florida

Daniela Hantuchova of Slovakia plays a forehand volley during her second round match against Agnieszka Radwanska of Poland during day three of the 2009 Medibank International at the Sydney Olympic Park Tennis Centre on January 13, 2009 in Sydney

Andy Murray of Great Britain celebrates winning a game in his match against Roger Federer of Switzerland during the Exxon Mobil Qatar Open Tennis on January 9, 2009 in Doha, Qatar

Caroline Wozniacki of Denmark hits a backhand during her game against Jill Craybas of the USA during day three of the ASB Classic at ASB Tennis Centre on January 7, 2009 in Auckland, New Zealand

Ivan Navarro of Spain plays a backhand in his first round match against Marat Safin of Russia during day one of the 2009 Australian Open at Melbourne Park on January 19, 2009

Melanie South of Great Britain plays a forehand in her first round match against Marion Bartoli of France during day one of the 2009 Australian Open at Melbourne Park on January 19, 2009