London, July 6 : British tennis star Andy Murray has been told to mix up his game if he wants to win Wimbledon.

Andy Roddick's coach Larry Stefanki says the world No 3 needs to change his mentality and become more aggressive.

Stefanki, who used to coach Tim Henman, said: "He has to change his mentality. He is stuck playing defensive tennis only, that was the big difference. I don't think he played enough offence.

"I think the difference was that Murray's second serve was very attackable."

Murray, who is taking a short break to move house, will spend more hours on the practice court perfecting the art of getting to the net and volleying.

The British No 1, 22, said: "Coming to the net is something I have worked on a lot but I didn't use it that much in the matches.

"I'll try and get better at it and come back next year and hopefully go one better." (ANI)