Una serie de notas muy interesantes...

http://www.tompeters.com/cool_friends/content.php?note=011008.php

http://www.nytimes.com/2007/03/04/sports/playmagazine/04play-talent.html?_r=2&n=Top/Reference/Times%20Topics/Organizations/U/United%20States%20Tennis%20Assn

http://www.nytimes.com/2007/03/02/sports/tennis/20070302_BRAIN_GRAPHIC.html

El autor se llama Dan Coyle y lo conocí a través de 100volando.blogspot.com