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Top seed Jannik Sinner broke American hearts as he beat Tommy Paul, albeit home favourite Jessica Pegula marched into the last eight.

Top seeds Jannik Sinner and Iga Swiatek continue to blaze a trail through the US Open draws, easing into the quarterfinals of a tournament marked by almost daily upsets with a minimum of fuss.

Sinner disappointed a partisan crowd with a 7-6(3) 7-6(5) 6-1 win over Tommy Paul in an entertaining fourth-round tie after Swiatek had beaten Liudmila Samsonova 6-4 6-1 in a more muted atmosphere on the main Arthur Ashe Stadium show court on Monday.

Italian Sinner barely got a look at Paul’s serve until the third set but produced his best tennis when it mattered to subdue the effervescent American and move on to a mouth-watering last-eight meeting with 2021 champion Daniil Medvedev.

“I can be very proud today, it was a tough opponent, so I’m very happy to be in the next round,” said Sinner, who beat Medvedev in Melbourne in January to win his only Grand Slam title.

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