The Swede racked up 33 winners in the bright sunshine on the Hisense Arena, and it was only repairs to a dead spot discovered on the court at the start of the third set that extended the contest to nearly two hours.
Fourth seed Robin Soderling eased effortlessly into the last 16 of the Australian Open with a methodical 6-3 6-1 6-4 trouncing of Czech qualifier Jan Hernych on Saturday.
The Swede racked up 33 winners in the bright sunshine on the Hisense Arena, and it was only repairs to a dead spot discovered on the court at the start of the third set that extended the contest to nearly two hours.
The oldest man left in the tournament, 31-year-old Hernych was playing in the third round of a grand slam for the first time in 19 attempts.
The world number 241 showed some pride with a gallant rearguard action in the third set but Soderling rarely needed to move out of first gear to keep intact his unbeaten record in 2011.
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