Stosur advances to 2nd round at Japan Open
Stosur, who won the tournament in Osaka in 2009, had five aces and converted 5 of 6 break points.
The ninth-ranked Stosur reached the semifinals of the Pan Pacific Open in Tokyo earlier this month and is seeking her first title of the year.
Copyright 2012 by The Associated Press
This story is from ESPN.com's automated news wire. Wire index
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