MELBOURNE (Reuters) -Novak Djokovic was dragged into a dogfight by talented teenager Dino Prizmic and had to dig deep to open his Australian Open title defence with a 6-2 6-7(5) 6-3 6-4 victory in the first round on Sunday.
At a shade over four hours, it was Djokovic's longest first-round match at a major and he heaped praise on the Croatian qualifier for his performance on his Grand Slam debut.
