Rules of the Game: Coaches and other officials must remain within the confines of the technical area except in special circumstances, for example, a trainer or doctor entering the field of play, with the referee’s permission, to assess an injured player.
Rules of the Game: For international matches the field of play must have dimensions of: Length: minimum 100 m (110 yds), maximum 110 m (120 yds); Width: minimum 64 m (70 yds), maximum 75 m (80 yds).
Rules of the Game: In the event that the game ball should burst or fail somehow during the run of play, the referee will immediately stop the match until the game can be resumed by calling for a drop ball at the spot of the failure with a fresh ball.
The African Cup of Nations, the main international football competition in Africa, was first held in 1957.
Substitutions were allowed for the first time in the 1970 World Cup.