Arguably the most popular sport in the world, football or soccer owes much of its mass appeal to its simplicity.
A strip of open space, two players and a ball is all that's needed to start a casual game of football.
However, the more organised version played in official leagues like the English Premier League and the Spanish La Liga or big international events like the FIFA World Cups, Euros, the Olympics and so on, abide by a set of universal football rules.
The laws of the game have been devised and fine-tuned by FIFA - the official global governing body of football – over the years.
