Caroline Wozniacki of Denmark wipes her face with a towel during Saturday's fourth-round match against Latvia's Anastasija Sevastova at Melbourne Park. The top-seeded Wozniacki won 6-3, 6-4 to advance to the quarterfinals, where she will meet Francesca Schiavone.
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An aerial view of the Wozniacki-Sevastova match using a variable planed lens.
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Wozniacki leans over the net and attempts to keep her balance after defeating Sevastova.
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Sevastova returns Wozniacki during their match.
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Li Na of China returns to Victoria Azarenka of Belarus during their fourth-round match. The ninth-seeded Li won 6-3, 6-3 and advanced to a quarterfinal meeting with Andrea Petkovic.
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Azarenka returns to Li during Saturday's match. The eighth-seeded Belarusian hit just 12 winners in a losing effort.
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Li, a semifinalist in Melbourne last year, serves to Azarenka.
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Roger Federer of Switzerland waves to the crowd after a practice session Saturday at Melbourne Park.
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Bob Bryan and Mike Bryan of the United States of America celebrate match point of their third-round doubles match against Benjamin Becker of Germany and Michael Kohlmann of Germany.
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Jaden Grinter of New Zealand plays a forehand during his first-round juniors match against Dimitri Bretting of Switzerland.
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Daniel Nestor of Canada (top) serves during a third-round doubles match with Max Mirnyi of Belarus (bottom).
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Novak Djokovic of Serbia plays a stroke during his fourth-round match against Nicolas Almagro of Spain. Djokovic won 6-3, 6-4, 6-0.
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Ana Ivanovic (center) and friends watch the Djokovic-Almagro match.
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Almagro plays a backhand to Djokovic during Saturday's match.
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Tomas Berdych of the Czech Republic celebrates after beating Fernando Verdasco of Spain in their fourth-round match. Berdych won 6-4, 6-2, 6-3.
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Verdasco returns to Djokovic during Saturday's match.
17 of 24Torsten Blackwood/AFP/Getty Images
Francesca Schiavone of Italy returns to Svetlana Kuznetsova of Russia during their fourth-round match. Schiavone won 6-4, 1-6, 16-14.
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Schiavone falls over the net during her fourth-round match.
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Roger Federer hits a forehand return to Spain's Tommy Robredo during their fourth-round match. Federer won 6-3, 3-6, 6-3, 6-2.
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Robredo looks skyward during Saturday's match.
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Germany's Andrea Petkovic celebrates a break point win over Russia's Maria Sharapova during their fourth-round match. Petkovic won 6-2, 6-3.
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Sharapova reaches for a backhand return against Petkovic.
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Andy Roddick of the United States plays a forehand against Stanislas Wawrinka in their fourth-round match.
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Wawrinka celebrates his 6-3, 6-4, 6-4 win over Roddick.
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