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Third seed Jessica Pegula is into the third round after a straight sets win over fellow American Sofia Kenin.

Pegula won 6-3 6-1 in just under an hour to set up a third-round tie with Canada's Leylah Fernandez.

Fernandez, who was a finalist at the US Open in 2021 when she lost to Emma Raducanu, beat Thailand's Mananchaya Sawangkaew 6-4 6-1.

Botic van de Zandschulp was rallying from 40-0 down, but Jan Choinski holds him off with a move to the net.

An important service hold to get him off the mark.

Jan Choinski was one of the very few British players that made it into the second round at Wimbledon this year.

He beat the Czech Republic's Vit Kopriva in straight sets before losing to Frances Tiafoe, although he did take a set off the 17th seed.

Let's see how he gets on in New York. He's reached a carer high ranking of 75th just six weeks ago.

He'll serve first to get us up and running...

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Jan Choinski is the first Brit in action.

At 30-years-old, this will be just his second appearance in the main draw at the US Open and his fifth overall at a Grand Slam.

And, as the world number 76, it is also the first time he has not had to go through qualifying or rely on a withdrawal to make the main draw.

The German-born Brit will be hoping to claim his first win at an overseas Slam today when he takes on Botic van de Zandschulp of the Netherlands.

The pair are warming up now so play should get under way in the next few minutes.

Five Brits are in action around Flushing Meadows on day four:

• Katie Boulter is scheduled fourth on Stadium 17 for her second-round meeting with seventh seed Karolina Muchova.
• Jan Choinksi's delayed first-round tie against Botic van de Zandschulp will be the second match on court five.
• Fran Jones follows Choinski on court five, resuming her rain-interrupted first-round match against Magda Linette with a one-set lead (6-4 0-0).
• Toby Samuel completes a trio of Brits on court five, facing 18th seed Jiri Lehecka for a spot in round three.
• Jacob Fearnley is also in second-round action, with his match against 27th seed Tomas Martin Etcheverry second up on court 12.

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• Brit Arthur Fery's US Open debut ended in a straight-sets first-round defeat to Lorenzo Musetti.
• American Coco Gauff put on a serving masterclass to defeat Turkey's Zeynep Sonmez in straght sets.
• Second seed Elena Rybakina beat 17-year-old wildcard Thea Frodin in straight sets as she chases a third major and the number one ranking.
• French maverick Gael Monfils won on his 40th birthday as he began the final Grand Slam of his career.
• Fifth seed Flavio Cobolli fought from two sets down to beat Francisco Comesana.
• Seeds Madison Keys, Taylor Fritz, and Mirra Andreeva advanced to round two with straight-sets wins.

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Welcome along to day four of the 2026 US Open!

After the rain wreaked havoc yesterday, we have got a jam-packed schedule to get through today - with plenty of first-round matches still to come after they were suspended or postponed.

It's looking a lot brighter in New York today, so hopefully we'll have no interruptions!

Aryna Sabalenka and Carlos Alcaraz are in action in the night session, but we're going to turn our attention to the five British players who are playing today.

Let's get into it.