British number one Andy Murray has admitted he will need to bring his ‘A’ game to the table to beat A Rod at SW19 and make his first Wimbledon final.

The 22-year-old plays the biggest game of his career since reaching the US Open final last year when he takes on American Andy Roddick on a packed centre court today.

Murray, in irresistible form as he brushed aside Juan Carlos Ferrero 7-5 6-3 6-2 on Wednesday, is currently enjoying his best run at the Championships and is bidding to be the first Brit since Fred Perry to lift the coveted crown.

The young Scot goes into the match with a slight advantage after Roddick needed five sets to get past Australian former champion Leyton Hewitt.

But Murray, who has received good luck messages from the Queen, Sean Connery and Cliff Richard in the past week, says he will need to be at his best to prevail.

“I understand that I can lose the next match if I don.t play my best. That has been one of the things I’ve learnt and it has made a huge difference to me over the last year or so,” he said.

“If I don’t bring my best game then I’m gonna lose to guys like Hewitt and Roddick.

“I feel confident because I’ve won a lot on grass, but I know I’m gonna have to perform very well. That gets the nerves and adrenaline going and makes me play better.”

Murray’s form has attracted celebrity admirers to Wimbledon this week, including Titanic star Kate Winslet, Former England rugby captain Lawrence Dallaglio, Scottish rugby international Kenny Logan and even Miss Scotland.

And the Dunblane-born star, who has used the National Tennis Centre in Roehampton extensively this week, believes that is a major boost for the British game.

“It is good for tennis any time you get big stars or celebrities coming to watch. It makes it cooler for kids and stuff, which is important in this country,” he added.