Tomas Berdych has booked his place in round four of the Australian Open for a fourth consecutive year.
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The seventh seed did not drop serve once as he blasted past Bosnia's Damir Dzumhur 6-4 6-2 6-2 in 105 minutes at Hisense Arena.
Berdych lost just 16 of 72 service points, hitting 13 aces and winning 37 of 41 points behind his first serve.
He broke his opponent five times, capitalising on six double faults from the 21-year-old.
Berdych, who is yet to drop a set in Melbourne this week, will face either Kevin Anderson or Edouard Roger-Vasselin next.
Written by
Robert Summerscales
Robert Summerscales
