Murray bemoans physical failing

Andy Murray felt let down by his body as he wearily exited the US Open at the quarter-final stage in a four-set loss to Novak Djokovic.

It was past 1am in New York when the world number one finally finished off a 7-6 (7/1) 6-7 (1/7) 6-2 6-4 victory after three hours and 32 minutes to move forward to a semi-final against Japan’s Kei Nishikori.