viernes, 4 de marzo de 2011

Service mechanism.

Now I'm going to leave you some videos of the way professional tennis players do their service.

Here's Roger Federer:
 Now Novac Djokovic:

And finally, Andy Roddick:

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1 comentario:

  1. TVShows4 de marzo de 2011 a las 10:38

    this is interesting, but you could talk a little about each service.

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