Members of the public take part during a Cardio Tennis session at Westfield London on January 25, 2013 in London, England.
{"Image ImageDescription": "LONDON, ENGLAND - JANUARY 25:   Members of the public take part during a Cardio Tennis session at Westfield London on January 25, 2013 in London, England.  (Photo by Jan Kruger/Getty Images for LTA)", "Image Copyright": "2013 Getty Images"}