Kyle Edmund's keep running at the US Open reached an end as world number one Novak Djokovic indicated he has returned to his best with a 6-2 6-1 6-4 fourth-round win.

World number 84 Edmund, 21, crushed two seeds to achieve the last 16 of a Grand Slam surprisingly.

In any case, the Briton was outmaneuvered from the begin by safeguarding champion Djokovic.

Edmund's annihilation implies Andy Murray is the last Briton left in the singles, while Djokovic goes ahead to face France's Jo-Wilfried Tsonga in the last eight.

Djokovic hinted at no being corroded regardless of just finishing six recreations in the previous two rounds in view of wounds to Jiri Vesely and Mikhail Youzhny.

The 29-year-old Serb required treatment amid the third set as the inconvenience he had with his upper arm in the first round erupted once more.

In any case, he came through unscathed to guarantee his mission for a thirteenth Grand Slam title and third this year stays on track.

"It feels awesome to play a full match following a peculiar couple of days when I didn't have an excessive amount of tennis," said Djokovic.

"I left the squares with high force. It is difficult to do that when you need to hold up throughout the day to play.

"I made Kyle work for every point and kept him moving around the court."

Edmund's hurry to the fourth round included triumphs over thirteenth seed Richard Gasquet and twentieth seed John Isner.