World No1 Novak Djokovic produced a polish display to end Kyle Edmund's US Open campaign and cruise into the quarter-finals with a straight sets win at Flushing Meadows. The Serbian had benefited from injury withdrawals in his last two matches but was far from rusty as he quickly dismissed the challenge posed by the British number four.
Victory over John Isner has ensured the world number 84 would play in his first ever grand slam last 16 match, but he was unable to threaten defending champion Djokovic as he prevailed 6-2 6-1 6-4. The 12-time major winner will face France's Jo-Wilfried Tsonga in the last eight while Edmund's defeat leaves Great Britain with only Andy Murray in the singles draw.
"It feels great to play a full match after a weird couple of days when I didn't have too much tennis," said Djokovic. "I came out of the blocks with high intensity. It's not easy to do that when you have to wait all day to play. I made Kyle work for each point and kept him moving around the court."
The 21-year-old Edmund, whose previous best major performance was a run to the third round at the French Open, said: "It's given me a lot more belief in my game. Not that I didn't believe in my game but it's nice to actually do it on a big stage against some good players, two top-20 players and a guy that was playing well.
"So three good wins there that I managed – different styles, different games. It's nice to know you can come out and adapt to situations. I'm getting better and better each time at that. And to win three best-of-five sets, I've never done that in my career."
Murray faces Grigor Dimitrov in his fourth round clash, and will hope to go one better after Edmund joined Dan Evans and Johanna Konta in crashing out of the tournament. Evans missed a match point before losing in five sets against Stanislas Wawrinka, while Konta was defeated by Latvia's Anastasija Sevastova.