epa03393075 Novak Djokovic of Serbia reacts as he plays Andy Murray of Great Britain during the men's final match on the fifteenth day of the 2012 US Open Tennis Championship at the USTA National Tennis Center in Flushing Meadows, New York, USA, 10 September 2012. The US Open has been extended a day for the fifth straight year due to weather. EPA/JASON SZENES *** Local Caption *** 03393075.jpg