Novak Djokovic advances at Australian Open; Andy Murray out

Novak Djokovic moved closer to his 10th Australian Open title on Saturday with a 7-6 (7), 6-3, 6-4 victory over Bulgarian Grigor Dimitrov on Saturday in Melbourne, but it wasn't easy.

Djokovic, the fourth seed, battled through a hamstring injury in the third-round match and needed a medical timeout following the tough first set.

"Every point and game mattered," said Djokovic, 35. "The turning point for both players was