Stan Wawrinka of Switzerland celerates defeating Tomas Berdych of Czech Republic in the round robin during day two of the Barclays ATP World Tour Finals tennis at the O2 Arena on November 10, 2014 in London, England.
{"Image ImageDescription": "LONDON, ENGLAND - NOVEMBER 10:  Stan Wawrinka of Switzerland celerates defeating Tomas Berdych of Czech Republic in the round robin during day two of the Barclays ATP World Tour Finals tennis at the O2 Arena on November 10, 2014 in London, England.  (Photo by Julian Finney/Getty Images)", "Image Copyright": "2014 Getty Images"}