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Stanislas Wawrinka breaks down what many call the best backhand in tennis.
Stanislas Wawrinka breaks down what many call the best backhand in tennis.
Andy Roddick shows Yahoo! Sports how to serve it 155mph.
Andy Roddick's coach Larry Stefanki shows how to execute the shot.
Andy Roddick breaks down how to hit the through the legs shot.
Dominika Cibulkova displays a couple of cool moves with her racket.
Argentina's Gisela Dulko shows some of the trick shots she does in between matches.
Dominika Cibulkova breaks down how to execute the perfect the serve.