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Serena Williams got on and off court as quickly as she could in the scorching heat Friday, registering yet another record with match win No. 61 at the Australian Open as she advanced to the fourth round with a 6-3, 6-3 victory over Daniela Hantuchova.
The five-time Australian Open champion later withdrew from the doubles, avoiding any extra exposure to the blazing sun during the once-in-a-century heat wave that was gripping Melbourne for a fourth straight day.
Two-time finalist Li Na, the major threat to top-ranked Williams in the top half of the women's draw, had to save a match point before coming back to beat No. 26-seeded Lucie Safarova 1-6, 7-6 (2), 6-3 in 2 hours, 37 minutes.
Li, the 2011 French Open champion, later joked that she needed the match practice ``because I think the weather is not warm enough.''
Williams didn't face any serious danger in her win over No. 31-seeded Hantuchova, whose only win in 10 head-to-head matches came in the corresponding round at the 2006 Australian Open.
Williams was off the court in 1 hour, 20 minutes, and has conceded just 12 games in three straight-set wins this week.
She equaled Margaret Court's Australian Open mark of 60 wins with her second-round victory, and beat that in the third round when she also matched Lindsay Davenport's record of 69 main-draw matches here in the Open era. That means she'll set another record just by showing up on Sunday, against the winner of the night match between 2011 U.S. Open champion Sam Stosur and former No. 1-ranked Ana Ivanovic.
``It was a tough match ... it's definitely hot, but you have to be ready to play,'' she said. ``And then you have to prepare yourself mentally, too.''
The temperature hit 39 Celsius (102 Fahrenheit) during Williams' match and topped 42 C (108 F) by the mid-afternoon, but humidity remained low.
Williams has won 24 matches dating back to August, carrying momentum from her dominating 2013 into a new season. She won 78 of her 82 matches and won 11 titles last year, and seems to be getting better with age.
``I feel like, in life 32