Rules of the Game: For FIFA matches, the ball should weigh not more than 450 g (16 oz) and not less than 410 g (14 oz) at the start of the match.
The U.S. Governing body for the sport did not have soccer in its name until 1945, when it became the U.S. Soccer Football Association.
The mascot for the 1978 FIFA World Cup in Argentina was a boy character named Gauchito.
Unlike the Olympics, FIFA recognizes the four Home Nations of the United Kingdom - England, Scotland, Wales and Northern Ireland- as separate entities.
FC Barcelona donates more than $1 million a year to UNICEF and wears the humanitarian organization's logo on its jersey.
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