An artist's impression of the Hockey Centre as it might look during the London 2012 Hockey competitions. Image by Populous.
LONDON - JANUARY 15: A general view of Wembley Arena, the new venue for the Masters, during the 2007 Saga Insurance Masters Snooker at Wembley Arena on January 15, 2007 in London, England. (Photo by Julian Finney/Getty Images)
WIMBLEDON, ENGLAND - JUNE 29: Centre court is seen on Day Two of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 23, 2009 in London, England. The match is played under the closed Centre Court roof. (Photo by Pool/Getty Images)