Musicians entertain the crowds as gates open on day 1

Carsten Ball hits a serve in his quarter final match against Marinko Matosevic during the 2009 Australian Open Wildcard Play-offs at Melbourne Park on December 19, 2008 in Melbourne, Australia

Serena Williams of the USA receives treatment for an injury from the tour doctor against Vera Dushevina of Russia in their second round match during the Mutua Madrilena Madrid Open tennis tournament at the Caja Magica on May 10, 2010

Frank Dancevic of Canada returns a shot against Novak Djokovic of Serbia during day five of the Sony Ericsson Open at the Crandon Park Tennis Center on March 27, 2009 in Key Biscayne, Florida

Swiss Federer Roger Federer (L) and Swedish player Robin Soderling pose before their French Open tennis men's final match on June 7, 2009 at Roland Garros Stadium in Paris

Jelena Jankovic of Serbia serves during her Women's Singles First Round match against Petra Cetkovska of the Czech Republic on day three of the French Open at Roland Garros on May 26, 2009 in Paris, France.