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A Mexican man in pre-hispanic Aztec costume play the ball during a traditional "Juego de Pelota" (in Spanish) at the Xcaret eco-park in Xcaret, Mexico on June 5 2009. Called by the Maya "pok-ta-pok" and for the Aztecs "tlachtli", it is a former Indo-American game of ball which practice goes back to approximately 3.500 years in the past and has been considered to be a precedent of the football. AFP PHOTO/Luis Acosta (Photo credit should read LUIS ACOSTA/AFP/Getty Images)

A Mexican man in pre-hispanic Aztec costume play the ball during a traditional "Juego de Pelota" (in Spanish) at the Xcaret eco-park in Xcaret, Mexico on June 5 2009.  Called by the Maya "pok-ta-pok" and for the Aztecs "tlachtli", it is a former Indo-American game of ball which practice goes back to approximately 3.500 years in the past and has been considered to be a precedent of the football. AFP PHOTO/Luis Acosta (Photo credit should read LUIS ACOSTA/AFP/Getty Images)