Djokovic 'battles tank at Open'

A visual effects specialist has created Novak Djokovic's toughest opponent at the Australian Open, pitting the world number one against an Abrams Tank.

The virtual clash has gone viral ahead of Djokovic's semi-final showdown against Stan Wawrinka and shows the Serbian star locked in a series of rallies against the American-built vehicle.While Djokovic eventually celebrates a win against his armoured foe, the creators of the video handed the last laugh to the tank which opens fire at Djokovic as he attempts to 'shake hands' with its cannon.Djokovic will likely be bracing for a similarly tough battle tonight when he attempts to exact revenge against Stan Wawrinka, following his quarter-final loss to the Swiss star at last year's Australian Open.