Goalball is a competitive game for men and women with blindness or a visually impairment. To play a game, two teams with three players each (and up to three substitutes) are needed. Since players have different levels of sight, the players are blindfolded to ensure that all players have no vision.
The object of the game is to score as many points as possible by rolling a ball the size of a basketball over the opponent's goal line using a bowling motion. The other team must block the ball from passing into their goal. The goalball weighs three pounds and has bells inside so the blindfolded players can hear the ball coming.
When the players hear the ball coming towards them they will dive, usually head-first, into a stopping formation hoping to block it with their bodies. If the ball crosses the back line, it is considered a goal.
Watch this 5 minute video to learn more about Goalball featuring Cliff Cook, coach of the Lakeshore Youth Goalball Team (2013 High School National Champions).