Andy Murray today pledged to improve still further despite a near-flawless performance in powering past Latvia's Ernests Gulbis on Centre Court.

The No3 seed took just 88 minutes to seal a 6-2, 7-5, 6-3 win before rushing to Court 14, where Viktor Troicki and Daniel Gimeno-Traver were locked in a five-set battle to face him tomorrow.

Andy's brother Jamie was also on court in the mixed doubles late last night but the 22-year-old underlined his focus by watching intently as No30 seed Troicki, from Serbia, sealed a narrow 6-7, 6-0, 1-6, 6-3, 7-5 victory.

Murray made just five unforced errors against Gulbis in a ruthless display much improved from his opening round win against America's Robert Kendrick, and was perhaps boosted by No5 seed Juan Martin Del Potro's surprise exit to Lleyton Hewitt which further opens up the path to the final in his half of the draw.

The Scot said: "You can always do things better. It's tough against a guy like Gulbis because he's got a huge serve.

"He went through a patch in the second set where he made 10 first serves in a row. It can be tough to break someone like that but I stayed focused on my own serve and didn't give him any opportunities. It was very solid."

But despite Murray's emphatic display, Troicki says he has the self-belief to cause a major upset in the third round and insists he won't be intimidated by the partisan Wimbledon crowd.

The 23-year-old said: "Murray's playing great right now and it's going to be tough for me, for sure. But I need to believe that I can win these matches against the top players. And if I believe before we start, that helps me.

"I need to play aggressive, play smart. give my best. I hope I can win if I play my best tennis. But I'm not going to give up."

The form guide favours Murray, who has won their two previous clashes, the last time a crushing 6-1, 6-0 win at the Miami Masters in March.

"I was playing pretty good going into the Miami match," recalled Troicki. "I played a great match in the second round against David Nalbandian and beat him pretty easily.

"So I was feeling confident against Andy, but it just didn't go my way. He played amazingly on the hard court, and he won the tournament in the end."

Troicki accepts he will have few supporters among the raucous Centre Court crowd tomorrow for the biggest game of his career.

"It's going to matter a lot, but I'll just try to block it out," he said. "It's going to be like a Davis Cup match because he's playing at home and all the crowd is going to cheer for him. But that's tennis, I've got to play it like it is."

Troicki lost the first set to Gimeno-Traver on the tie-break, won the second to love, but claimed just one game in the third. He bounced back to take the fourth set 6-3, before finally claiming victory in the failing light.

Ahead of their clash, Murray insisted his team, which includes coach Miles Maclagan and fitness coach Jez Green, are intent on not changing their routine and treating Wimbledon like any other event.

He said: "The thing that's important at these tournaments is to do what you do every other week of the year, not to just change things because it's Wimbledon. The pressures are a little bit different.

"So you just try and act like you do every other week. We do that when I'm playing in Doha or wherever. That's just something we do. We play football to warm up and we are going to do the same thing here.

"We'll do forfeits and joke around and have fun like we always do because I think when you start changing things is when you start to worry about everything that's going on around you. If you just act normal, I think you deal with things better."