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LIVE: Serena Williams beats Anett Kontaveit 7-6 (7-4) 2-6 6-2 to reach third round
Victory prolongs American's farewell before impending retirement
LIVE: Briton Jack Draper faces Canadian sixth seed Felix Auger-Aliassime in second round
Earlier: Andy Murray beats Emilio Nava 5-7 6-3 6-1 6-0 to reach third round
Britain's Harriet Dart loses 6-4 6-0 to Hungary's Dalma Galfi
Britain's Joe Salisbury and American Rajeev Ram make winning start to their men's doubles title defence
Jonathan Jurejko
BBC Sport at Flushing Meadows
Not as hot and sticky in New York today, with temperatures currently about 25C and humidity around 55%.
A little cooler than Murray's match on Monday, albeit we're sat in the shaded media seats on Ashe.
The court can feel much hotter. Remember being sat courtside for Dan Evans' match against Roger Federer a few years ago - could have fried an egg on the blue acrylic.
Image source, BBC Sport*Murray 0-1 Nava
Well that was long.
Nava steps up his level to finally get his hold after a 10-minute first game. Seems like this is going to be a good one.
Murray 0-0 Nava*
Nava fights power with power, jumping in the air as he slams forehands at Murray.
The Brit is eventually battled into submission and returns into the net.
Murray 0-0 Nava*
Eek. Double fault.
Jonathan Jurejko
BBC Sport at Flushing Meadows
Ooooh. That horror of a mishit by Nava is greeted by shocked groans from the American fans.
To rub further salt into his wounds a replay is quickly shown on the big screen.
Nava averts his eyes.
Murray 0-0 Nava*
How is this only the first game.
Murray's backhand return is long by a whisker and we're back to deuce.
Murray 0-0 Nava*
Murray gets back to deuce and reaches out as far as his arm will go to stay in the next point.
It works as Nava fluffs and overhead and gives Murray another break point.
Murray 0-0 Nava*
Nava will not be intimidated by the three-time Grand Slam champion.
He puts in a powerful forehand of his own and saves break point.
Murray 0-0 Nava*
It's a lengthy rally to kick things off and eventually it's Nava - playing his first match on Arthur Ashe - who blinks first, hooking a backhand wide.
The next one goes long, but the 20-year-old recovers some composure with a couple of solid serves to make it 30-30.
Murray grunts loudly as he hits each shot, looking to set up a break point and eventually he overpowers his opponent. 30-40.
Murray 0-0 Nava*
Here we go then.
Andy Murray won the toss and chose to receive serve first.
Murray v Nava
Murray has not reached the third round of a Grand Slam since the 2021 edition of Wimbledon.
The 35-year-old has a good chance of getting there today. He is currently ranked 51st in the world, while Nava is down at 203rd.
Murray came through his first-round match against 24th seed Francisco Cerundolo in straight sets. It was the first time he's won in three sets at a Grand Slam since Wimbledon in 2017.
Nava, on the other hand, took three hours and 58 minutes to get through his first-round five-setter.
Image source, Getty ImagesJonathan Jurejko
BBC Sport at Flushing Meadows
Here come the players!
Franz Ferdinand’s classic Take Me Out - a staple of 2000s indie discos - booms out of the speakers as Murray and Nava walk out.
Not sure if they’ve intentionally picked a Scottish band.
Nava, a 20-year-old American, probably hasn’t even heard of them.
Image source, BBC SportJonathan Jurejko
BBC Sport at Flushing Meadows
The early birds on Ashe today were given a bonus treat before Andy Murray's match.
Home hope Coco Gauff - one of the poster stars of the tournament - was out hitting on the main court before following Murray onto court later this afternoon.
Not many fans were already sat in their seats, although the hospitality boxes behind the baseline were already pumping.
Most were holding glasses of free fizz.
Image source, BBC SportMurray v Nava
When Andy Murray won his first Grand Slam title at the US Open in 2012, Emilio Nava was 10 years old.
Image source, Getty ImagesJonathan Jurejko
BBC Sport at Flushing Meadows
Image source, BBC SportThis year is, of course, the 10th anniversary of Andy Murray's maiden Grand Slam victory. How could you forget?
Before his opening match, the 35-year-old recalled his feelings before and after finally landing what had been an elusive major title.
"It was obviously, at the time, a huge moment for me. I’d been put under a lot of pressure to try and achieve that.
"A lot of what I’d achieved in my career up to that point it felt, to me anyway, kind of irrelevant because of the questions I’d continued to get asked about winning Slams. Am I good enough? Am I fit enough? Am I mentally strong enough? Like lots and lots of questions over a period of time.
"It was nice to finally be able to move on from that because it’s not particularly helpful."
Andy Murray is first on our agenda today. The former champion faces American world number 203 Emilio Nava on Arthur Ashe.
World number 88 Harriet Dart should be on court 12 from around 19:00 BST. She will take the British number one title from Emma Raducanu if she wins today and is playing Hungarian world number 91 Dalma Galfi.
Britain's Jack Draper is on Louis Armstrong from 00:00 BST, facing the tough test of sixth seed Felix Auger-Aliassime
Serena Williams is on Arthur Ashe from 00:00 BST as she continues to prepare for her evolution away from tennis, with men's top seed Daniil Medvedev on after.
Image source, Getty ImagesEmma Raducanu's US Open dream may be over, but fear not: the Brits are very much alive and kicking in New York.
Welcome to coverage of day three of the US Open.
Image source, Getty Images