Rules of the Game: The referee alone is authorized to allow an injured player to re-enter the field, whether the ball is in play or not.
Rules of the Game: During penalty kicks to determine the winner of a match, all players, except the player taking the kick and the two goalkeepers, must remain within the center circle.
Rules of the Game: An indirect free kick is awarded to the opposing team if a goalkeeper touches the ball again with his hands after it has been released from his possession and has not touched any other player.
Rules of the Game: All field marking lines should not be more than 12 cm (5 inches) wide.
The oldest soccer club in the world is England's Sheffield FC, founded in 1857.
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