Carlos Alcaraz stormed into the third round of the US Open with a blistering straight-sets victory on Wednesday as Novak Djokovic overcame an early scare to advance.

Novak Djokovic battled past American qualifier Zachary Svajda in four sets on Wednesday to reach the US Open third round for a record-equalling 19th time.

Avowed Taylor Swift super-fan Iga Swiatek romped through her US Open first-round assignment on Tuesday before offering congratulations to the pop star following her engagement to Travis Kelce.

Jannik Sinner launched the defence of his US Open title on Tuesday with a ruthless 6-1, 6-1, 6-2 win over Czech world number 89 Vit Kopriva.

Elite coach Brad Gilbert agreed with Becker's post, highlighting Medvedev's previous episodes of poor behaviour.

France's Benjamin Bonzi sent Russian 13th seed Daniil Medvedev crashing out of the US Open early Monday in a stormy late-night thriller that boiled over into chaos following an extraordinary third-set flashpoint.

Aryna Sabalenka launched the defence of her US Open crown with a battling victory on Sunday as American men's hopes Taylor Fritz and Blake Shelton advanced safely.

Iga Swiatek insisted Saturday she does not see herself as favorite for the US Open despite an impressive run of recent form that has left her as the player to beat according to oddsmakers.

Carlos Alcaraz is hoping to end Jannik Sinner's dominance of hardcourt Grand Slam events as the two rivals prepare to do battle again at the US Open.

Coco Gauff says she didn't hesitate to shake up her team just days before the US Open, hoping a new specialist coach can help shore up the serve that has been letting her down.

World number three Alexander Zverev says he's "on the right path" heading into the US Open after leaning on friends and professional help to address mental health concerns he revealed at Wimbledon.

Former tennis world number one Novak Djokovic says the expansion of most ATP Masters 1000 events to 12 days makes them "just way too long for me" as he focuses on his pursuit of a record 25th Grand Slam title.

Iga Swiatek shrugged off lingering weariness to partner Casper Ruud to back-to-back victories in the revamped mixed doubles competition at the US Open on Tuesday.

World number one Jannik Sinner, who was forced to retire during the final of the Cincinnati Open, and playing partner Katerina Siniakova have withdrawn from the US Open mixed doubles draw, tournament organisers confirmed Tuesday.

Carlos Alcaraz won the ATP Cincinnati Open title on Monday after defending champion Jannik Sinner retired due to illness in the first set.

With Roger Federer retired and Rafael Nadal struggling to get back on court due to injuries, Novak Djokovic was the last man of that golden generation standing at Flushing Meadows, but the Serb crashed out in the third round to Australian Alexei Popyrin.

Jannik Sinner produced a brutal display of baseline power as he became the first Italian man to win the US. Open with a 6-3, 6-4, 7-5 win over American Taylor Fritz in the final on Sunday.

"I'm speechless right now. So many times I thought I was so close to get the US Open title. It has always been a dream of mine and finally I got this beautiful trophy," said Sabalenka.

Frances Tiafoe blamed his heartbreaking five-set US Open semi-final defeat to Taylor Fritz on cramping after his "body shut down".

Taylor Fritz fought back to defeat compatriot Frances Tiafoe at the US Open on Friday, becoming the first American man to reach a Grand Slam final in 15 years.