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Check out this video to see what happens when Maria Sharapova meets Novak Djokovic HEAD-to-HEAD!

Maria Sharapova and Novak Djokovic joined the official Press conference of HEAD Tennis in New York on the 24th of August. A broad base of U.S. and International media witnessed a surprising and amusing approach of the HEAD Tennis Stars.

Maria Sharapova challenges Novak Djokovic for a "lesson on-court". Check out this video to see what happened:

http://www.youtube.com/watch?v=I7OfaRAWEXA

Also:

See Maria's version of the Instinct spot:

http://www.youtube.com/watch?v=MBTmOMT2he4

Check out how Novak imitated Maria's Instinct spot:

http://www.youtube.com/watch?v=NK1ZNUuP8ws