Samantha Stosur ousts Madison Keys
The third-seeded Stosur was never broken against the 18-year-old Keys and clinched the win in just over an hour.
She said "you have to make sure you're serving well against Madison so you don't fall behind in a set, because she's got a very, very big serve."
Bouchard won seven straight games to take a 3-0 lead in the second set and cruised from there.
Copyright 2013 by The Associated Press
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