LONDON, ENGLAND - NOVEMBER 26:  Manchester City Carlos Tevez poses for a picture with a tennis racket after Juan Martin Del Potro of Argentina won his men's singles round robin match against Roger Federer of Switzerland during the Barclays ATP World Tour Finals at the O2 Arena on November 26, 2009 in London, England. Getty Images logo Getty Images 3 months ago

LONDON, ENGLAND - NOVEMBER 26: Manchester City Carlos Tevez poses for a picture with a tennis racket after Juan Martin Del Potro of Argentina won his men's singles round robin match against Roger Federer of Switzerland during the Barclays ATP World Tour Finals at the O2 Arena on November 26, 2009 in London, England.