Novak Djokovic, the three time defending champion of the Australian Open, won't get a fourth straight.

Djokovic was upset in the quarterfinals Tuesday night by eighth seeded Stanislas Warwinka in five sets, 2-6. 6-4, 6-2. 3-6. 9-7.  The match lasted four hours and was sweet redemption for Warwinka, who had lost fourteen times to Djokovic, including a five hour plus marathon in the fourth round of the Open a year ago.

Warwinka will face #7 seed Tomas Berdych in the semifinals.