Blind football

Teams may also use one guide, who is positioned off the field of play, to assist in directing players.

The ball is equipped with a noise-making device to allow players to locate it by sound.

Matches consist of two 20-minute halves, with a ten-minute break at half-time.

Football 5-a-side players are assigned to one of three sport classes based on their level of visual impairment: Teams are permitted to use sighted athletes as goalkeepers and guides; sighted goalkeepers cannot have been registered with FIFA for at least five years.

In South America, there are records of a Brazilian Tournament organized in 1980.