Andy Roddick fired 15 aces in a 6-4, 6-1 win over Ukranian Alexandr Dolgopolov to advance to the quarterfinals of the Brisbane International tennis tournament on Wednesday.
Roddick controlled the second round match with his powerful serve, putting 71% of his first serves in play and winning 87% of first serve points.
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Earlier, crowd favorite Jelena Dokic of Australia lost 10 straight games in a 6-0, 6-1 loss to Germany's Andrea Petkovic, dealing a blow to her confidence ahead of the Australian Open.
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