Postpublished at 22:39 British Summer Time 29 August 2018
*Murray 5-7 6-2 3-5 Verdasco
40-15 before the world number 32 goes long.
40-30.
A brilliant second serve which kicks up is too good for Murray, who perhaps came in too much.
Clever.
Andy Murray (GB) loses 7-5 2-6 6-4 6-4 to Fernando Verdasco (Spa) in second round
Cameron Norrie (GB) loses 6-2 2-6 6-4 6-4 to Dusan Lajovic (Ser) in second round
Defending champion Sloane Stephens beats world number 134 Anhelina Kalinina 4-6 7-5 6-2
Saj Chowdhury and Alex Bysouth
*Murray 5-7 6-2 3-5 Verdasco
40-15 before the world number 32 goes long.
40-30.
A brilliant second serve which kicks up is too good for Murray, who perhaps came in too much.
Clever.
*Murray 5-7 6-2 3-4 Verdasco
30-0 as 'Dasco dances at a disco with a sliced serve out wide.
Then dives to a double.
30-15.
Del Potro 6-3 6-1 7-6 (7-4) Kudla
Third seed Juan Martin del Potro is into the third round!
The 29-year-old sees off American Denis Kudla in straight sets, winning 6-3 6-1 7-6 (7-4) in one hour and 59 minutes.
He will face the winner of this Murray-Verdasco battle on Friday.
Jonathan Jurejko
BBC Sport at Flushing Meadows
You come all this way and the first people you bump into are Brits...
Josie, Charlie, Rosie and Jen have flown over from London and they're watching Andy Murray.
"I honestly think he can go all the way, despite his injury problems," says Charlie. "You've got to think positively. He's got a good record here so you never know."
And how are they coping with the weather? "Melting."
Murray 5-7 6-2 3-4 Verdasco*
Magic Murray. Vintage from the big man - on the run and a forehand express train.
A delicate drop and it's 40-0.
He then takes to the air to rabbit-punch another winner.
*Murray 5-7 6-2 2-4 Verdasco
Murray takes the next with a dipping backhand that makes a beeline for Verdasco's feet at the net.
That's tricky to pick up.
*Murray 5-7 6-2 1-4 Verdasco
Murray produces, arguably, his best shot of the match - a whipped angled double-handed backhand classic.
15-40.
Verdasco saves one.
*Norrie 2-6 6-2 2-4 Lajovic
Cameron Norrie has been broken in the third set - a series of unforced errors put him 0-40 on his serve and Dusan Lajovic converted the second of his three break points.
*Murray 5-7 6-2 1-4 Verdasco
Murray makes his eighth unforced error of the third set.
The Scot then comes in to a second serve and sends down a punishing forehand return winner.
15-15.
A wide forehand at the net is also too good.
15-30.
Murray 5-7 6-2 1-4 Verdasco*
Dom Inglot
British doubles player on BBC Radio 5 live sports extra
You might see a sprint to the ice bath - the ones here you can only fit one person in because they are seated.
At Wimbledon you could fit two people in them if you really wanted to, but no chance at the US Open.
I could barely fit in that first one, my knees were coming out of the water.
Can you imagine Verdasco and Murray sharing an ice bath?
Murray 5-7 6-2 1-4 Verdasco*
The first is saved.
Verdasco takes the next thanks to Murray's double.
His fifth of the match.
Murray looks like a man who's been asked to watch the entire series of Friends in the space of a week.
Murray 5-7 6-2 1-3 Verdasco*
Murray looks a little sluggish - it's tough out there.
0-30 as Verdasco races in to fire a winner.
The Spaniard then comes out on top of a rally.
Murray the says to himself, "good advice".
Sarcy.
Three break points.
*Murray 5-7 6-2 1-3 Verdasco
Dom Inglot
British doubles player on BBC Radio 5 live sports extra
Fernando Verdasco is playing a much smarter game compared to the second set. Maybe he hasn't had a bit of a mind blow up because he is leading, but the big key for him is being smart in these games.
*Murray 5-7 6-2 1-3 Verdasco
15-0.
Ace.
30-0.
Verdasco is finding the corners, then makes the drop and then reads the return drop before tickling a forehand away.
40-0.
Game
Del Potro 6-3 6-1 5-5 Kudla*
Third seed Juan Martin del Potro is two sets to the good, but American Denis Kudla is making him work for the decisive third.
The Argentine holds serve to make it 5-5 in the third set against the world number 72.
Norrie 2-6 6-2 2-1 Lajovic*
Cameron Norrie has saved a break point to go 2-1 up in the third set against Dusan Lajovic. That will do a lot for the confidence of the British number two.
Jonathan Jurejko
BBC Sport at Flushing Meadows
Spectators are trying to cool down anyway they can...
Hand fans...
Electric fans and water sprays...
The towel from your hotel bathroom...
Murray 5-7 6-2 1-2 Verdasco*
30-0.
40-0 after Murray sends Verdasco out wide with a sliced serve.
The 2012 champion then makes an error before Verdasco responds with one of his own.
Cat Archer
BBC Radio tennis producer on Arthur Ashe Stadium
Anna Wintour’s here pretty frequently right?
I’ve seen all sorts today. New Yorkers and tourists alike with weird and wonderful ways to battle the sun’s heat.
*Murray 5-7 6-2 0-2 Verdasco
Dom Inglot
British doubles player on BBC Radio 5 live sports extra
I wonder if Andy had a little bit of a mental blip because of those line calls. He definitely got caught out by that. It goes to show, you put in so much good work, he had the momentum and a line call is a little bit off and suddenly it can change.