Francisco Comesana might be ranked 119th in the world, but he does have a good record at Grand Slams and has been ranked as high as 54th - so it's not as easy a draw for Flavio Cobolli as it looked on paper.

The fifth seed waves to the crowd, calling for more noise after scrambling for a Comesana drop shot and then sending back an angled sliced winner to hold serve.

Back-to-back breaks are followed by consecutive holds to 30.

The crowd is firmly behind home favourite Madison Keys, cheering enthusiastically as she wraps up her latest service game.

Alina Korneeva, serving to stay in the set, is receiving quite animated support from her box.

Francisco Comesana took a lengthy break at the end of that opening set and Flavio Cobolli didn't look too pleased as he waited on the baseline for his opponent to return.

The Italian fifth seed races to a love hold in his opening service game but he crumbles in his second, with a series of unforced errors and a double fault handing Comesana an early break.

Cobolli is not happy and he's complaining about something to the umpire. Now he's shouting at his team, gesturing angrily...

Image source, Getty Images

Or not... Alina Korneeva races into a 0-40 lead and although Madison Keys finds a couple of big first serves to save two break points, she puts a limp forehand into the net on the third.

Back on serve.

Madison Keys has decided that enough is enough.

Stepping into the court, she hammers a flat cross-court backhand to earn break point before overpowering teenager Alina Korneeva once again to lead 5-3.

The American will serve for the first set.

There is at least some action under way on Louis Armstrong Stadium, but things are not going so well for Italian fifth seed Flavio Cobolli.

The French Open finalist has lost the opening set against world number 199 Francisco Comesana.

The Argentine raced to a 3-0 lead before Cobolli pulled back two games, but his serve continued to look shaky and Comesana restored his break advantage and served out the opener with little resistance.

Image source, Getty Images

22nd seed Madison Keys raced into a 3-0 lead over Alina Korneeva on Arthur Ashe but has had that advantage erased.

Korneeva completed two comfortable holds to 15 either side of breaking Keys in game five, with the American hitting an untimely double fault during deuce.

We're now back on serve, with Keys holding to 30 to lead 4-3.

While we wait for play to begin elsewhere, let's turn our attention to the show courts where seeds Flavio Cobolli and Madison Keys are not having it all their own way...

Three Brits are due to be in singles action today:

• Arthur Fery is second up on Grandstand where he will face Italian 13th seed Lorenzo Musetti.
• Jan Choinski and Fran Jones are scheduled fourth on courts five and six, respectively. Choinski begins his US Open against Botic van de Zandschulp while Jones faces Poland's Magda Linette.

Toby Samuel, Katie Boulter, Harriet Dart, and Jacob Fearnley have already booked their places in the second round.

Here's how the day session is looking on the main show courts...

Arthur Ashe Stadium

• Madison Keys [22] v Alina Korneeva
• Taylor Fritz [9] v Darwin Blanch

Louis Armstrong Stadium

• Francisco Comesana v Flavio Cobolli [5]
• Mirra Andreeva [5] v Janice Tjen

You can keep across the live scores and results here.

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• Aryna Sabalenka and Carlos Alcaraz, returning from a wrist injury which has kept him out of singles action for four months, began their respective title defences with straight-sets wins.
• Retiring former champion Stan Wawrinka bowed out of his final Grand Slam with defeat to Matteo Berretini.
• Brits Jacob Fearnley and Harriet Dart completed comeback wins over Martin Landaluce and Peyton Stearns to reach round two.
• However, Harry Wendelken lost to Luciano Darderi in four sets.
• Ben Shelton, Naomi Osaka- channelling basketball star Allen Iverson with her latest on-court look, Stefanos Tsitsipas - who upset Cincinnati Masters champion Arthur Fils, Amanda Anisimova, Iga Swiatek and Wimbledon champion Linda Noskova also advanced.

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It's been a damp old start to day three of the 2026 US Open.

Play is still waiting to begin on the outside courts, where second seed Elena Rybakina and British rising star Arthur Fery are among those scheduled to be in first-round action.

The good news is play is under way on the show courts, with 22nd seed Madison Keys facing Alina Korneeva on Arthur Ashe and fifth seed Flavio Cobolli playing Francisco Comesana on Louis Armstrong.

We'll bring you updates from both of those matches.