Daniil Medvedev expects his US Open quarterfinal with fellow Russian Andrey Rublev on Wednesday to be a real fight but said nothing will come between the childhood friends once the dust has settled.

Defending champion Alcaraz, who has only dropped one set on his journey into the last eight, produced a dominant display to overwhelm Italian world No.61 Matteo Arnaldi, winning 6-3, 6-3, 6-4 in 1hr 57min.

Defending champion Iga Swiatek was sent crashing out of the US Open on Sunday, losing in three sets to Latvia's 20th seed Jelena Ostapenko.

A tenacious Novak Djokovic survived a US Open late-night fright battling back from two sets down to tame fellow Serb Laslo Djere 4-6, 4-6, 6-1, 6-1, and 6-3 on Friday, and move into the fourth round at Flushing Meadows.

Romanian Sorana Cirstea sent big-hitting fourth seed Elena Rybakina tumbling out of the U.S. Open with a thrilling 6-3 6-7(6) 6-4 victory late on Friday to reach the fourth round at Flushing Meadows for the first time in her career.

Coco Gauff won the final 10 games of her match against Elise Mertens, completing a 3-6, 6-3, 6-0 comeback and reaching the US Open round of 16, where she will face Caroline Wozniacki on Sunday.

Defending champion Carlos Alcaraz eased into the third round of the US Open with a 6-3, 6-1, 7-6 (7/4) win over South Africa's Lloyd Harris on Thursday.

The 26-year-old from Shanghai -- ranked 67th in the world -- produced the match of his life to defeat last year's US Open finalist 6-4, 5-7, 6-2, 0-6, 6-2 in 3hr 19min.

The second-seeded Serbian superstar, eyeing a record-extending 24th Grand Slam singles title at these championships, booked his place in the last 32 with a 6-4, 6-1, 6-1 victor

Former U.S. Open champion Stan Wawrinka said he still had the game for the grandest stage after the Swiss veteran became the oldest man to win a singles contest at the tournament since a 40-year-old Jimmy Connors in 1992.

Alcaraz, returning to the same Arthur Ashe Stadium court where he lifted his first Grand Slam as a teenager a year ago, was always in control after Germany's Dominik Koepfer rolled his left ankle badly in the opening game

The 43-year-old tennis icon was no match for her 26-year-old opponent, who was born just weeks before Williams played her first Grand Slam final at the US Open in 1997

Novak Djokovic made a winning return to the U.S. Open by storming past Frenchman Alexandre Muller 6-0, 6-2, 6-3 on Monday to reclaim the world number one ranking and take the first step towards matching Margaret Court's record haul of 24 Grand Slams.

Sixth seed Gauff, seen as one of the favourites for the title after recent tournament wins in Washington and Cincinnati, came from behind to win 3-6, 6-2, 6-4 in an attritional 2hr 50min tussle on the Arthur Ashe Stadium.

Danish fourth seed Holger Rune crashed out of the US Open on Monday, losing in four sets to Spanish journeyman Roberto Carballes Baena.

Swiatek, whose grip on top spot is under threat from Aryna Sabalenka in New York, needed just 58 minutes to dispose of the 86th-ranked Peterson.

Novak Djokovic and Carlos Alcaraz are on a US Open collision course as the final Grand Slam tournament of season gets under way on Monday with American teenager Coco Gauff chasing a breakthrough first major title.

Australian star Nick Kyrgios has withdrawn from this month's US Open as he works his way back from injury, organizers said Thursday.

Wyndham Clark's late mother always told him to "play big" and the American did just that at the U.S. Open to earn an emotional breakthrough victory on Sunday.

Djokovic’s astonishing number of slams in each court is what makes him, at the moment, the best player across all surfaces.