Andy Murray on how to beat Novak Djokovic

British number one Andy Murray is pleased to have reached his fifth successive Grand Slam semi-final but admits he will have to raise his game against world number one Novak Djokovic.

Murray says his defeat to the Serbian in the 2011 final will have no effect on Friday's match and says "tactics, patient tennis and being smart" will be key to his chances of reaching a third successive final in Melbourne.