Murray happy with battling win

British number one Andy Murray insisted he was delighted with his performance against second-round opponent Michael Llodra at the US Open.

Sixth seed Murray needed four sets to overcome tricky left-hander Llodra, France's world number 38, but was thrilled to have come through the test 6-4 1-6 7-5 7-6 (9-7) in New York.

"He's got a huge serve and being a lefty makes it tougher," said Murray, who will next face world number 48 Jurgen Melzer of Austria. "He's a really tough guy to play against and I was happy I won in four sets."

One of Murray's biggest difficulties was dealing with a number of disputed line calls in a packed grandstand stadium, which the 21-year-old Scot said was an arena that should have been equipped with Hawk-eye technology.

"Hawk-Eye is obviously for the players but also I think the reason why it came into tennis is because the fans really enjoy it," he added.

"And I think it's tough, as well, for officials. There's a lot of pressure when you've got a court that's that close, the fans are making a bit of noise.

"I'd rather have Hawk-Eye on every single court, but I understand that it's very, very expensive, although it would have made a difference."