Maria Sharapova and Serena Williams have cruised into the third round of the Australian Open with straight-set victories. Fifth seed Sharapova beat Belarusian Aliaksandra Sasnovich 6-2, 6-1, while defending champion Williams thrashed Taiwan's Hsieh Su-wei 6-1, 6-2. Williams, who is chasing her 22nd Grand Slam title, says family support is a major factor in her success.
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Novak Djokovic, Roger Federer and Agnieszka Radwanska are among the big names in action today.

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