Andy Murray crashes out in US Open quarters
World number two Britain's Andy Murray crashed out in the US Open quarterfinals after a four-hour-long 1-6, 6-4, 4-6, 6-1, 7-5 defeat at the hands of Japan's Kei Nishikori. Nishikori will face two-time Grand Slam champion Switzerland's Stan Wawrinka, who beat current world rank 142 and one-time US Open champion Argentina​'s Juan-Martin Del Potro 7-6, 4-6, 6-3, 6-2 on Thursday.