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Continue to ChatSecond-Strike Tennis: When Returners Dominate http://www.tennisabstract.com/blog/2017/04/23/second-strike-tennis-when-returners-dominate/
Second-Strike Tennis: When Returners Dominate http://www.tennisabstract.com/blog/2017/04/23/second-strike-tennis-when-returners-dominate/