Novak Djokovic was pushed by 74th-ranked Valentin Royer for more than 3½ hours before he reached the third round of the French Open with a 6-3, 6-2, 6-7 (7), 6-3 victory.

Defending champion and 24-time major winner Novak Djokovic needed four hours to fend off first-timer Dino Prizmic in a first-round Australian Open result that few could have predicted.