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Continue to ChatWhat Happens After an Unsuccessful First Serve Challenge? http://www.tennisabstract.com/blog/2016/02/04/what-happens-after-an-unsuccessful-first-serve-challenge/
What Happens After an Unsuccessful First Serve Challenge? http://www.tennisabstract.com/blog/2016/02/04/what-happens-after-an-unsuccessful-first-serve-challenge/