Football is the name of the game that involves kicking a round-shaped ball with the purpose of scoring a goal. The game differs from place to place. While football in most countries mean association football, where there are eleven players in each side, trying to score goals with their feet only, the same name – football means completely different things in certain countries like the United States of America and Australia.

In the most generic case, the game of football consists of eleven to eighteen players in each side, playing in a predetermined playing area and with certain clearly set rules. However, apart from the players of both sides, there is a referee in the field to control the game, judge the players and warn or punish them if a rule is broken. The game of football is the most widely played and viewed sport in the world, as almost every nation has its own football team.