Rules to play Goal Ball
The wingers main responsibility is to cover the wing line. That is, the 1.5m lines on either end of the team area and parallel to the goal line. His second responsibility, is to back up his centre player. The defending winger should stand with his feet at the end of the wing line in a crouched or a squatting position. When he hears the oncoming ball and has determined its course, he should line down in the direction of the oncoming ball, either going left or right, always remembering to lie down in line with the wing line, that is parallel to the goal line. The player must always remember, to stretch out fully with arms and legs straight, becoming almost an extension of the wing line, covering as much of the goal line as possible. The players arms, should be straight, but in front of the players face, with the head tilted back, protecting the players face from any contact with the ball.
The Centre defends the same as a winger, always diving onto the floor, fully stretched out, covering as much of the court as possible. The Centre player will play on the front line of the team area, orientating himself with the 0.15m centre line. This marking tells the centre, that he is at the middle of the front line. The centre either dives left or right, along the front line in the direction of the oncoming ball, always keeping, some part of his body in the team area.