Andy Murray reached his third Australian Open final after recording a 6-4 6-7 (5-7) 6-3 6-7 (2-7) 6-2 victory over Roger Federer in Melbourne.Andy Murray reached his third Australian Open final after recording a 6-4 6-7 (5-7) 6-3 6-7 (2-7) 6-2 victory over Roger Federer in Melbourne.