Alcaraz said after his third-round win that he was happy with the level of fitness he had shown in the early rounds following his lengthy absence, while he demonstrated against Paul that the quality of his shot-making is as good as ever.

One sensational cross-court forehand winner early in the second set, which landed in from an almost impossible angle, was measured at 103mph.

That came shortly after Alcaraz had broken Paul’s serve in the 10th game of a tight, high-quality opening set to take it 6-4.

Paul, who was attempting to reach the quarter-finals of his home Grand Slam for the first time, battled hard throughout but Alcaraz proved to be too strong.

Paul had two break points when Alcaraz served for the match at 5-4 in the third set, but the two-time US Open champion put together a run of four straight points to seal victory.

Former British number one Tim Henman told Sky Sports: “When you haven’t played tennis for four weeks, it seems a lot and you can be a bit rusty. This is four and a half months.

“If you would have given Alcaraz a blank piece of paper at the beginning of the tournament and asked how he’d want the first four matches to go, he would have scripted it exactly like that.

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“He’s had a few slightly challenging moments but, in the important moments, he’s just come up with incredible tennis. That’s got to give him so much confidence moving forward.”

Later on Sunday, home hope Frances Tiafoe delighted American fans with a entertaining victory over 2021 champion Daniil Medvedev.

Tiafoe saved a set point in the third-set tie-break before wrapping up a 7-6 (7-1) 6-4 7-6 (8-6) win moments later to maintain his perfect record on Louis Armstrong Stadium.

The 11th seed has won all 10 of his matches on the US Open’s secondary show court, while it is just his second win in eight appearances against Russian Medvedev.

Tiafoe, a two-time semi-finalist in New York, will face fellow American Alex Michelsen in the last eight after the 22-year-old beat Argentina’s Tomas Martin Etcheverry 7-6 (8-6) 6-4 6-4 to reach his first Grand Slam quarter-final.

Forwards: Fin Baxter (Harlequins), Arthur Clark (Gloucester), Alex Coles (Northampton), Luke Cowan-Dickie (Sale), Chandler Cunningham-South (Harlequins), Tom Curry (Sale), Theo Dan (Saracens), Ben Earl (Saracens), Greg Fisilau (Exeter), Joe Heyes (Leicester), Maro Itoje (Saracens), Emmanuel Iyogun (Northampton), George Kloska (Bristol), George Martin (Saracens), Asher Opoku-Fordjour (Sale), Guy Pepper (Bath), Henry Pollock (Northampton), Will Stuart (Bath), Kepueli Tuipulotu (Bath), Sam Underhill (Bath).

Backs: Seb Atkinson (Gloucester), Elliot Daly (Saracens), Tobias Elliott (Saracens), Immanuel Feyi-Waboso (Exeter), George Ford (Sale), Tommy Freeman (Northampton), George Furbank (Harlequins), Benhard Janse van Rensburg (Bristol), Archie McParland (Northampton), Cadan Murley (Harlequins), Harry Randall (Bristol), Henry Slade (Exeter), Fin Smith (Northampton), Marcus Smith (Harlequins), Freddie Steward (Leicester), Jack van Poortvliet (Leicester).

It was more than three minutes outside her best time for the course and well outside her British record for the distance of 1:05:43.

Britain’s Jack Rowe missed out on a record fourth consecutive victory in the men’s race, finishing in second place, 14 seconds behind Birchfield Harriers’ Kadar Omar Abdullahi, who won in a time of 1:01:51.

Britain’s David Weir defended his title in the men’s wheelchair event, winning the race for the fifth time in its nine-year history in a new record time.

The 47-year-old, who retired from Paralympic competition in 2024, knocked 45 seconds off his own record for the course, which he set last year, winning in 46:13.

Eden Rainbow Cooper won the women’s event in 52:47 to defend her title.