Barclays ATP World Tour Finals - Media Day

LONDON, ENGLAND - NOVEMBER 20: (Back L-R) Juan Martin Del Potro of Argentina, Novak Djokovic of Serbia, Andy Murray of Great Britain, Fernando Verdasco of Spain, Nikolay Davydenko of Russia, Robin Soderling of Sweden, Roger Federer of Switzerland and Rafael Nadal of Spain pose for a photo during the Barclays ATP World Tour Finals - Media Day at the County Hall Marriot Hotel on November 20, 2009 in London, England. (Photo by Julian Finney/Getty Images)