And while seeking to tackle another player to âstealâ the ball, one must shout "voy!" which is a Spanish word for "Iâm here!"
"Players must discern the voice of their teammates and have a sense of where the ball is in relation to the goal," says kottke.org.
The gameâs playing style is also unique. Players ensure passes cover a short distance to avoid losing the ball and there is a lot of dribbling.
"Players try not to let the ball stray more than a few inches from their feet, making nimble footwork and a command of the ball vital," defender Keryn Seal, who plays for Englandâs blind soccer team, told BBC.
"Thereâs a lot more dribbling and close control than in a sighted game. Communication is very important among the players too. Itâs about speed of movement â you only have about two or three seconds to react to any situation," team captain David Clarke, who has scored 108 goals in an international career, added.
And as a player approaches the goal with the ball, there is a guide behind the goal who will direct him when to shoot.
"Etiquette dictates that spectators remain quiet unless the ball goes out of play because players need to be able to hear each other and, crucially, the ball," says BBC.
The game has its own World Cup editions after every four years. The last one took place in England in 2010 featuring ten teams.
Interestingly, âbig boysâ that dominate conventional soccer still rule this specialised sport. These include Brazil, Argentina, England, Spain and France. Brazil won the 2010 games after defeating Spain two-nil.