New York: Andy Murray stormed into his sixth US Open quarter-final, beating Grigor Dimitrov in their fourth-round 6-1, 6-2, 6-2, here on Monday night. The second seed dismissed the No. 22-seeded Dimitrov in two hours in Arthur Ashe Stadium.

“I played very well. Tactically I played a very good match. I don't think I made any mistakes there. I kept good concentration throughout,” Murray said. “I think Grigor played his best, but I didn't really give him a chance to get into the match,” he said after the match, according to atpworldtour.com.

The Rio Olympics gold medalists and World No. 2 will next tangle with Japanese Kei Nishikori, who beat Croatian Ivo Karlovic 6-3, 6-4, 7-6(4) on Monday afternoon.

Meanwhile, Stan Wawrinka will now Juan Martin del Potro in the quarters as he defeated Illya Marchenko 6-4, 6-1, 6-7(5), 6-3 at Flushing Meadows in the fourth round. The Swiss has lost his past four meetings with the Argentine, claiming his last victory eight years ago at the Wimbledon. Del Potro, meanwhile, advanced into the last eight when Dominic Thiem was forced to retire from their fourth-round clash due to a right leg injury. Del Potro was leading 6-3, 3-2 with a break in the second set.

World No. 1 Novak Djokovic moved into the quarterfinals, beating 21-year-old Kyle Edmund 6-2, 6-1, 6-4. The defending champion will now face ninth seed Jo-Wilfried Tsonga for the last four berth. Djokovic had defeated Jerzy Janowicz 6-3, 5-7, 6-2, 6-1 in the first round, while in the second round Czech left-hander Jiri Vesely withdrew because of inflammation in his left forearm. In the third round, Djokovic was leading against Mikhail Youzhny 4-2 before the Russian retired because of a back injury. Meanwhile, Tsonga beat Jack Sock to reach the quarterfinal.

Meanwhile, Gael Monfils dismissed Marcos Baghdatis 6-3, 6-2, 6-3 to reach the last eight stage. He will now meet Lucas Pouille who created an upset by beating No. 4 seed Rafael Nadal 6-1, 2-6, 6-4, 3-6, 7-6(6) in the fourth round.