Playing tennis by ear.

• Position: Sports - Tennis for the blind - Brief article

Dan Guilbeault was 3 when doctors found a tumor on his optic nerves. He played basketball, baseball, and football until he lost most of his sight at age 11. Now 19, he's almost completely blind--and his favorite sport is tennis. The Perkins School for the Blind in Watertown, Massachusetts, where Guilbeault is a senior, began offering tennis classes two years ago, with a ball that rattles when it moves. Invented in Japan in 1984 and played in China, Russia, Britain, and the U.S., blind tennis relies on the human brain's ability to adapt to blindness by processing other senses, like...