In blind tennis, invented in Japan and spreading in the United States, players rely on their hearing to follow the trajectory of a foam ball that rattles when it bounces or is struck.
By THOMAS LIN, New York Times
Mon, 06/04/2012 - 11:54am
In blind tennis, invented in Japan and spreading in the United States, players rely on their hearing to follow the trajectory of a foam ball that rattles when it bounces or is struck.