Novak Djokovic continued to defy a hamstring injury as a straight-sets victory over Grigor Dimitrov sent him into the fourth round of the Australian Open. Dimitrov saved three set points at 5-3 and it appeared Djokovic was in full control but he was broken serving for the set and then had to save two set points, one at 5-6 and one in the tie-break. Having beaten Dimitrov nine times in their previous 10 meetings probably helped. The Serbian, who is into the fourth round for the 15th time, will next play Australia's Alex de Minaur. Rublev came through a tricky encounter against Dan Evans to win 6-4 6-2 6-3 after firing 60 winners past the Briton.
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