Postpublished at 16:33 British Summer Time 28 August 2017
Watson 2-3 Cornet*
The always dramatic Alize Cornet already admonishing herself despite being a break up. A hold to love for the Brit but she still trails the French world number 46.
Wildcard Sharapova beats world number two Halep 6-4 4-6 6-3 in 2hrs & 44mins
First Grand Slam match for Sharapova since 15-month ban
GB's Konta beaten 4-6 6-3 6-4 by world number 78 Krunic
Edmund beats 32nd seed Haase 6-3 7-5 6-3
Qualifier Norrie through after Tursunov retires when trailing 7-6 (9-7) 6-1
Watson loses 6-4 6-4 to Cornet; Venus, Muguruza & Kvitova through
Matt Davis
Watson 2-3 Cornet*
The always dramatic Alize Cornet already admonishing herself despite being a break up. A hold to love for the Brit but she still trails the French world number 46.
Sounds like Russia's Elena Vesnina, the 17th seed, is having bother getting to Flushing Meadows...
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*Edmund 2-2 Haase
First sign of pressure from Kyle Edmund. The young Yorkshireman earns the first break point of the match after some trademark ferocious forehands. Haase responds by moving forward and swatting a forehand winner. The Dutchman keeps his nerve to ease through deuce and win the first battle of the opening set.
Edmund 2-1 Haase*
Confident start from Kyle Edmund, who is wearing a garish top which looks slightly like an Aston Villa away kit from the 1980s.
Two straightforward holds - with a Haase hold-to-love sandwiched between - from the British number two. Now... can he make some inroads into the 30-year-old Dutchman's serve?
* denotes next serve
Watson 0-1 Cornet*
A sign of things to come? Fantastic defence to start with from Heather Watson to win the opening point, three times retrieving a Cornet smash before the Frenchwoman volleys into the net. But Cornet earns herself a break point which she takes when Watson sends a forehand into the tramlines.
Watson 0-0 Cornet
Piers Newbery
BBC Sport at Flushing Meadows
Heather Watson was impressively upbeat before her seventh attempt to win a match in the main draw at the US Open. "I blame you!" she joked (I think), pointing at the assembled press. "Every year it's, 'Will it be fifth time lucky, will it be sixth time lucky...' It's got to happen some time!" Alize Cornet will pose a feisty challenge and it's a match that could go either way, expect three sets and plenty of drama.
Norrie 0-1 Tursunov
Norrie is out on court 14 against Dmitry Tursunov, the Russian world number 645 who is fighting his way back up the rankings after injury.
The Brit lost the opening game - on his opponent's serve - to 15.
Norrie 0-0 Tursunov
Piers Newbery
BBC Sport at Flushing Meadows
Cameron Norrie was out hitting on Court 14 an hour or so before play - the left-hander was brimming with confidence when we spoke on Friday after a successful first run through Grand Slam qualifying.
Born in South Africa, brought up in New Zealand, with a Welsh mother and Scottish father, Norrie moved to the UK at the age of 16 before embarking on a very successful US college career.
The hard courts of Flushing Meadows feel more like home than Wimbledon's grass courts, and he is very much a man on the move. However, his dad will not be watching today.
"I told my dad to come but he's actually really into cycling and he's training to do some Tour de France routes so he didn't want to come," said Norrie. "He wanted to stay in shape for that."
Now:
Heather Watson (GB) v Alize Cornet (Fra)
Kyle Edmund (GB) v Robin Haase (Ned)
Cameron Norrie (GB) v Dmitry Tursunov (Rus)
19:00 BST (approx):
Johanna Konta (GB) v Alexsandra Krunic (Ser) - commentary on 5 live sports extra
00:00 BST: Simona Halep (Rom) v Maria Sharapova (Rus) - commentary on 5 live sports extra
But don't worry, there is still plenty to keep you entertained - starting with four Britons who are aiming to keep the British flag flying int he absence of Murray.
Kyle Edmund, who lost to Djokovic in the fourth round here last year, kicks off an early triple header at Flushing Meadows with Heather Watson and Cameron Norrie also just getting under way.
And later we will see our best chance of a British champion... Johanna Konta, recent Wimbledon semi-finalist and the world number seven.
Roger is here at Flushing Meadows as he bids for his THIRD Grand Slam title of the year.
So is fellow Wimbledon champ Garbine Muguruza. And her fellow Spaniard Rafa Nadal. But there are plenty of big names who aren't here...
Serena Williams is days away from her waters breaking, Andy Murray can't shake off that dodgy hip, Novak Djokovic and Stan Wawrinka are also out through injury...
Hello! And welcome to day one of the 2017 US Open. We say this every August but... can you believe it is the final Grand Slam of the year already? Me neither.
It only seems two minutes since we were all wondering ahead of the Aussie Open whether Roger Federer could ever return to anywhere near his best after that lay-off....
In tennis terms, there has not be loads of love between New York City and the Brits. Only Andy Murray in 2012 and Viriginia Wade, way back in 1968, have won in Queen's in the Open era.
Will a third name be added to that short list this year? Possibly...
And New York just loves Britain. The Beatles, the Stones, JK Rowling, English pubs, fish and chips... Anglophilia is ubiquitous in certain parts of NYC.
Sounds like a match made in heaven, right?
Us Brits just love New York. Don't we?
More flights go from London to New York than any other long-haul route in the world every day, not to mention those from elsewhere around the UK, as tourists and business types alike head over for a slice of the Big Apple.
World-famous tourist attractions, department stores, restaurants, bars... you name it, they've got it. No wonder 120,000 British expats live there...