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Continue to ChatBouchard, Radwanska, and Second Serve Futility http://www.tennisabstract.com/blog/2014/01/23/bouchard-radwanska-and-second-serve-futility/
Bouchard, Radwanska, and Second Serve Futility http://www.tennisabstract.com/blog/2014/01/23/bouchard-radwanska-and-second-serve-futility/