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 a penalty kick, the players other than the kicker must be inside the field of play but outside the penalty area and at least 9.15 m (10 yds) from the penalty mark.
Rules of the Game: A free kick awarded to the defending team inside its own goal area can be taken from any point within the goal area.
The first soccer league in the United States was the American Football Association, which existed from 1884-88.
London's new Wembley Stadium, which opened in 2007, has a seating capacity of 90,000.
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