Over the past few seasons, it has often been the physical fitness that has let Andy Murray down, especially during a Grand Slam when he’s played a gruelling five-set match.

The Brit has left no stone unturned to ensure that he’s in peak physical condition ahead of the 2011 Australian Open and feels that his preparation couldn’t have been any better ahead of the first Grand Slam tournament of the year.

The fifth seed said: “You never know how you’re going to feel once the tournament starts but I trained well in Miami.

“Then the last week or so has been quite tough for everyone because of the weather.

“But we have managed to get some decent practice indoors and practice outside the last couple of days.

“You have to trust the training you have done and believe in it,” he said. “That will get rid of some of the doubts.

“But yeah, you won’t have played a big match for quite a long time, no-one has played that many matches.

“The conditions are very different here to what we were playing right at the very end of the year in the indoor tournaments.”