Serena Williams continued her unbeaten start to the year as she powered past Slovenian Tamara Zidansek to reach the third round.
The 38-year-old American, bidding for a record-equalling 24th Grand Slam title, needed just over an hour to win 6-2 6-3.
The eighth seed has dropped eight games in her opening two matches.
Next she will face China’s 27th seed Wang Qiang, who was thrashed by Williams at September’s US Open.
Wang froze as she lost in 44 minutes on her maiden Grand Slam quarter-final appearance and will be hoping to put up a better fight in Melbourne on Friday.
Williams again looks in menacing form, however. Victory over 22-year-old Zidansek was a seventh straight win for Williams, who claimed the Auckland title earlier this month.
Williams, a seven-time champion at Melbourne Park, started sharply with a break in the opening game and, after staving off an opportunity for 22-year-old Zidansek in the fourth, pulled away to take the first set in 31 minutes.
Zidansek raised her level to make the second set more of a contest as errors started to creep into Williams’s game.
The American had to dig deep to fight off four break points before eventually holding for 3-3 – and that sucked the life out of 70th-ranked Zidansek.
Williams, whose roars after each point were becoming increasingly loud, almost inevitably pinched her opponent’s serve to love in the next game.
From that point it was relatively comfortable, Williams winning eight of the final 11 points to seal victory.
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