Great Britain's Jamie Murray signs his autograph on a tv camera lens as he celebrates winning his doubles...
Britain Tennis - Barclays ATP World Tour Finals - O2 Arena, London - 17/11/16 Great Britain's Jamie Murray signs his autograph on a tv camera lens as he celebrates winning his doubles match with Brazil's Bruno Soares against Croatia's Ivan Dodig and Brazil's Marcelo Melo Action Images via Reuters / Tony O'Brien Livepic EDITORIAL USE ONLY.