Andy Murray: 'Exceptional' year for Briton, says Richard Krajicekhttp://www.bbc.com/sport/0/tennis/29064526Andy Responds to Clay Death (Ha ha ha)US Open: Andy Murray says Novak Djokovic match demandingBy Piers Newbery BBC Sport at Flushing Meadows
Britain's Andy Murray said he was disappointed that Novak Djokovic proved physically stronger in their US Open quarter-final.
"I was a little bit disappointed, to be honest, because I did train very hard."
Murray carried out a training block with his support team in Florida after a disappointing quarter-final defeat at Wimbledon in July.
"You do the work for these matches, so I would have liked to have felt a little bit better towards the end," said the Scot.
"Maybe I haven't played enough matches at that level this year," he said.
"It's obviously different playing at that level, playing against the number one in the world. And the way that we play against each other, it's just an extremely physical match.
Murray said that in games against other players, for example Roger Federer, the points come quicker and it is not as demanding.
He added: "When me and Novak play against each other, you obviously see very tight, long rallies. Both of us do a lot of running.
"Maybe I'll gain a lot from playing a match like today, because it doesn't matter how much training you do, when you get on the match court it's different.
"I can't practice with the best player in the world, so it's tough to practice at that intensity."