Australian Open champ and World No. 1 Djokovic says tough childhood made him a fighter melbourne: All- conquering Novak Djokovic said a turbulent childhood where he had to queue for milk and bread in war- torn Serbia made him hungry for success, after he fought back to win his eighth Australian Open.

Djokovic, 32, needed to dig deep to rally from two sets to one down for the first time in a Grand Slam final and battle past fifth- seeded Austrian Dominic Thiem 6- 4, 4- 6, 2- 6, 6- 3, 6- 4.