They are competitors in their sport, but away from the tennis court Serena Williams and Caroline Wozniacki are besties. In fact, Sunday night after their final at the 2014 US Open, they went out clubbing together. Caroline also showed up for the Serena Williams Signature Statement fashion show for HSN. Wozniacki attended the Michael Kors fashion show as well. She’ll be tethered to the Big Apple for a few more weeks as she plans to run the 2014 New York City Marathon on November 2nd. She’s running to benefit Team for Kids.
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