Former champion Stanislas Wawrinka advanced to the round of 16 at the Australian Open after beating Lukas Rosol in straight sets in Melbourne on Saturday.
The Swiss ace was seldom troubled by his opponent from the Czech Republic and won 6-2, 6-3, 7-6 (3) in just under two hours.
The 2014 winner got his nose in front when he broke serve in the fourth game and repeated the feat in the eighth to wrap up the first set in just over half an hour.
In the second stanza, the fourth seed got the break in the sixth game, but this time the 30-year-old Rosol hit back and levelled matters with a break of his own.
The parity, though, lasted only a few minutes, as the two-time grand slam winner broke once more in the eighth game, with Rosol succumbing after double-faulting at the key moment.
The third set was a far more even affair, with Rosol fashioning the only break point of the set in the sixth game.
In the tie-break that ensued, the first seven points went with serve, at which point Wawrinka upped his game to get two mini-breaks – an advantage he was able to see through to the end.
He will face big-hitter Milos Raonic in the next round, after the Canadian beat Victor Troicki in straight sets earlier in the day.
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