MELBOURNE, February 12: Top seed Novak Djokovic survived a major injury scare as he battled past American Taylor Fritz 7-6(1), 6-4, 3-6, 4-6, 6-2 to reach the fourth round of the Australian Open on Friday.Defending champion Djokovic, seeking a ninth title in Melbourne, looked in command when he took the opening two sets but began to suffer with a side injury early in the third set.He needed to leave Rod Laver Arena to have treatment and was grimacing in pain at times as the 23-year-old Fritz took advantage to take...