Andy Murray enters quarter-finals of US Open

New York: Britain's Andy Murray was through to the quarter-finals of the US Open at Flushing Meadows here. The second seed took out Grigor Dimitrov of Bulgaria 6-1, 6-2, 6-2 on Monday, Xinhua news agency reported. With the victory, Murray set up a quarter-final clash with sixth seed Kei Nishikori of Japan, who earlier ousted Ivo Karlovic of Croatia in his fourth round match.