British number one Kyle Edmund progressed to the quarter-finals of the New York Open with a straight-set victory over Dominik Koepfer.

Eighth seed Edmund took one hour and 33 minutes to beat the German 6-2 6-4.

The 25-year-old will next play South Korea's Kwon Soon-woo, who beat Milos Raonic 6-2 6-7 (2-7) 6-3 in his second-round match.

Britain's Cameron Norrie failed to join Edmund in the last eight, losing 6-4 6-4 to Jason Jung of Chinese Taipei.