Roger Federer was surprised to be told some bookmakers have made Andy Murray favourite to win the Australian Open.

Murray has already beaten Federer twice this year and he beat world number one Rafael Nadal in Abu Dhabi, prompting bookmakers to make him joint-favourite even though he has only reached won Grand Slam final in his career.

Federer said: "He's playing well and finished strongly last year but I'm surprised that the bookies say that.

"He's never won a slam. It's surprising to hear."

"Andy's shown for a year that's he's knocking on the door. He's a good all-round player, has good tactics and he's full of confidence but winning a slam is a different animal. Not many guys have been able to win them over the last few years. Rafa and I have taken a lot of them.

"It doesn't happen that easily but he has a chance like many other players."

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