Andy Murray admitted he had to go away and lick his wounds after his Wimbledon disappointment.
The Scot was leading world number five Stefanos Tsitsipas 2-1 in their second-round match when the 11pm curfew kicked in.
It seemed the momentum was with Murray but when the match resumed the following day, the two-time champion was beaten in five sets.
Murray revealed it took a few days to get over the narrow defeat, but he quickly set about working on areas of his game which he could improve.
“I went away on holiday straight afterwards,” he said. “Always immediately after matches, especially Wimbledon, at majors there’s greater disappointment and greater emotions than at any other time in the year.
“Probably after three or four days of being away from it, I chatted to my team about things that I feel I need to change, certain shots in my game if I wanted to win more of those matches and dictate more of those matches.
“So I did that, went away and worked on things for a period of time.”
Murray is likely to face another seed, Grigor Dimitrov of Bulgaria, in the second round of the US Open.
But first the 2012 Flushing Meadows champion must overcome France’s world number 72 Corentin Moutet.
“I’ve not played against him, but I practised with him once, he’s an unbelievably talented guy,” added Murray.
“He’s not the biggest, he tends to play quite long points but he’s got tons of variety and good hands at the net.
“He can be a bit volatile at times but yeah, a good challenge for me, very different to how most players play in the draw.
“A lot of the game nowadays is based on power and serves and he’s the opposite really. A good test for me.”
Murray is one of six Brits in the first round on Tuesday, with Cameron Norrie, Dan Evans, Jack Draper, Katie Boulter and Jodie Burrage also in action.