Kei Nishikori has overcome Dusan Lajovic in three sets to reach the third round of the Australian Open.
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The Japanese took 50 minutes to wrap up the first two sets by a 6-1 scoreline, but was taken all the way in a third set that lasted an hour.
However, the Serbian could not rouse a comeback, as the 24-year-old won the tie-breaker 7-3 to seal his progress.
The world number 17 will face the winner between Donald Young and Andreas Seppi for a place in the fourth round.
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