Djokovic: Aussie Open tough to predict

Novak Djokovic believes this year’s race for the Australian Open crown is as unpredictable as it has been in years.

As many as half a dozen players have legitimate claims for the title, with perennial favourites Roger Federer and Rafael Nadal joined by the likes of reigning US Open champion Juan Martin del Potro, Scottish star Andy Murray and in-form Russian Nikolay Davydenko as potential winners.