Britain's Murray hits a return to Switzerland's Federer during their men's singles semi-final tennis match at ATP World Tour Finals at O2 Arena in London

 
Britain
Britain's Andy Murray hits a return to Switzerland's Roger Federer during their men's singles semi-final tennis match at the ATP World Tour Finals at the O2 Arena in London November 11, 2012. REUTERS/Suzanne Plunkett
Tags: london , WORLD