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The head-to-head between Serena Williams and Victoria Azarenka is overwhelmingly in favour of Williams: 18-4.
And Azarenka has never beaten her at a Grand Slam, going all the way back to their first meeting at the 2008 Australian Open.
And yet, Azarenka is the slight favorite going into their highly anticipated semifinal clash at the US Open Thursday night.
Why that is, and who might win, in this preview piece at SBD.

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