In-form fourth seed Agnieszka Radwanska extended her winning streak to 11 matches as she cruised into the third round of the Australian Open on Wednesday.
Unbeaten this year after title wins in Auckland and Sydney, the Polish world number four never hit top gear but still eked out a comfortable 6-3 6-3 victory over Irina-Camelia Begu in one hour, 26 minutes at Rod Laver Arena.
The Romanian, ranked 55th in the world, broke in the very first game of the match but was unable to maintain the momentum as Radwanska reeled off five straight games to take a stranglehold of the first set.
A slight wobble allowed Begu back into it before Radwanska closed it out 6-3.
Begu appeared to struggle with a shoulder injury and called for a trainer at the change of ends.
That allowed Radwanska to take full advantage, breaking in the opening game of the second set.
Begu attempted to force a comeback as the pair traded service breaks but the Romanian's unforced error count continued to climb as Radwanska closed out an easy win.
Fifth seed Angelique Kerber overcame a slow start to also advance to the third round with a 6-3 6-1 defeat of Lucie Hradecka.
Kerber lost her opening service game but eventually found her mojo as the Czech handed her the first set with a double fault.
The German, who had a breakout year in 2012 by reaching the semi-finals at Wimbledon and last eight at the French Open, then raced through the second set in just 22 minutes to set up a clash against the winner of the match between Austrian Tamira Paszek and American wildcard Madison Keys.
The news was not so good for fellow seeds Dominika Cibulkova and Klara Zakopalova, who both exited the tournament on Wednesday.
Cibulkova, the 15th seed from Slovakia, was upset 7-6 (8-6) 6-4 by unheralded Russian Valeria Savinykh, while number 23 Zakopalova was thumped 6-1 6-0 by Belgian Kirsten Flipkens.
Flipkens broke six times throughout the match to advance past the second round of the Australian Open for the first time in five appearances.
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