British number one Cameron Norrie reached the US Open fourth round for the first time with a composed victory over Denmark's 28th seed Holger Rune.
Norrie won 7-5 6-4 6-1 against the 19-year-old, who complained about the time the Briton was taking by aborting his ball toss in sunny conditions.
After being distracted, Rune won one more game as Norrie maintained focus.
Seventh seed Norrie, 27, will next play Russian ninth seed Andrey Rublev or Canadian 19th seed Denis Shapovalov.
Norrie is the first Briton to reach the last 16 in New York this year, with Dan Evans hoping to join him later on Saturday.