I can do a Djokovic in 2008, says 'fitter and stronger' Andy

The RBS-sponsored player has dropped down the rankings from a career-high eighth after missing three months with a wrist injury.

The injury ruled him out of Wimbledon and the French Open and wrecked his season. But now, after leading Great Britain to a convincing Davis Cup win over Croatia, the 20-year-old Scot says he's back on track.

"I used the time I was injured to work a lot on my overall fitness, and I feel much stronger physically," said Andy. "I'll be even stronger next year."

In an exclusive interview with RBS World of Sport, Murray also described his mixed emotions at seeing close friend and rival Novak Djokovic reach the final of the US Open.

And he revealed for the first time the tension between himself and coach Brad Gilbert during his long injury lay-off.

"Before my injury, Novak and I had been having a pretty similar year - probably ranked three and four in the Champions Race," said Andy.

"So, when he made the semis at Wimbledon and the French, and the final of the US Open, it was good for me in some ways. And in some ways it was tough.

"Obviously, I was wishing it was me doing that instead of him. But it also gave me the belief that I could get there too. Hopefully, I'll get the chance next year."

It was during the summer that cracks also started to appear in the relationships between Andy and his inspirational coach, Brad Gilbert.

Both have been quick to play down any conflict, but Andy admits the pair did go through 'tough times'.

He said: "When everything is going well, it's easy to be happy. But when you have a long injury like mine, you and your coach naturally go through tough times.

"However, I definitely think it's made our relationship stronger."

Andy was speaking at London's Dorchester Primary School, where he was promoting the Supergrounds scheme - a £6 million, six-year community programme, funded by RBS group, to transform primary school playgrounds into attractive and stimulating places to learn and play safely.

He was joined by brother Jamie, who is one of the top doubles players in the world and is also sponsored by RBS.

"It's been very well publicised that kids these days are not getting enough exercise, so I think the money that RBS is investing in Supergrounds can definitely make a difference," said Andy.

"RBS Supergrounds is a great way to get kids to lead a more active lifestyle and make the most of their playgrounds."