An official who watches a game or match closely to ensure that the rules are adhered to and to arbitrate on matters arising from the play.
referee
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An official who assists the referee from the touchline, especially in deciding whether the ball is out of play.
linesman
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Someone whose job is to train and organize a sports team.
coach
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The method of starting and, in some cases, restarting play in a game of football. It is also traditionally decided by a coin toss at the beginning of each game carried out by the referee.
kick off
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Method of restarting the game when the ball goes out of play over the goal line, without a goal being scored and having last been touched by a member of the defending team. The kick is taken from the corner of the field of play nearest to w
Corner kick
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A method of restarting play in association football. It is awarded after an infringement of the laws by the opposing team.
Free kick
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A method of restarting play in a game of football when the ball has exited the side of the field of play.
Throw in
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A method of restarting play after somebody commits a fault, in which a player is allowed to take a single shot on the goal while it is defended only by the opposing team's goalkeeper.
penalty
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is a method of determining which team is awarded victory in an association football match that cannot end in a draw.