US Open: Alcaraz and Medvedev surge into last 16 as Jabeur wins thriller

World No 1 Carlos Alcaraz and third seed Daniil Medvedev surged into the last 16 of the US Open on Saturday as Tunisia's Ons Jabeur kept her dream of a first Grand Slam title alive with victory in a three-set thriller.

Alcaraz, looking to become the first man to successfully defend the title since Roger Federer in 2008, produced a flurry of magical shots en route to dispatching British 26th seed Dan Evans 6-2, 6-3, 4-6, 6-3.

It was another stylish victory for the 20-year-old Spaniard, who will face Italy's Matteo Arnaldi in the fourth round on Monday.

Alcaraz, who will surrender his No 1 ranking to Novak Djokovic at the end of this tournament, admitted he was motivated to match Federer in defending his crown.

"Obviously defending the title is a goal for me," he said. "I'm looking for that. Nobody's done it here since Roger so I'd love to be part of tournament history with him."

Alcaraz's win keeps him on track for a repeat quarter-final against Italy's Jannik Sinner, a year after the two men duelled in an epic five-hour five-setter that finished at 2.50am, the latest finish in US Open history.

Sixth seed Sinner did his part to keep the rematch on course Saturday with a stylish 6-3, 2-6, 6-4, 6-2 win over Swiss veteran Stan Wawrinka.

Alcaraz's last-16 opponent Arnaldi, meanwhile, advanced after upsetting 16th-seeded Briton Cameron Norrie, winning 6-3, 6-4, 6-3 in just under two hours.

There was better luck for another member of Britain's US Open contingent elsewhere though, with Jack Draper reaching the last 16 of a Grand Slam for the first time with a 6-4, 6-2, 3-6, 6-3 victory over American world No 89 Michael Mmoh.

Draper will face eighth-seeded Russian Andrey Rublev on Monday for a place in the quarter-finals.

Rublev,