Australian Open defeat has 'mentally helped' Andy Murray

Andy Murray says his semi-final defeat to Novak Djokovic at last year's Australian Open has "mentally helped" him as he prepares to begin his 2013 campaign.

The British number one lost to the Serbian in five sets after nearly five hours - but since that defeat he went on to win Olympic gold and his first Grand Slam at the US Open.

Murray also says he will be wary of his first-round opponent Robin Haase, who he describes as "very talented" and "aggressive".

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