FIFA
The Fédération Internationale de Football Association (FIFA ; French for 'International Federation of Association Football') is an organization which describes itself as an international governing body of association football, fútsal, beach soccer, and eFootball. FIFA is responsible for the organization of football's major international tournaments, notably the World Cup which commenced in 1930 and the Women's World Cup which commenced in 1991.
FIFA eligibility rules
An emergency FIFA committee ruling judged that players must be able to demonstrate a "clear connection" to a country that they had not been born in but wished to represent. This ruling explicitly stated that, in such scenarios, the player must have at least one parent or grandparent who was born in that country, or the player must have been resident in that country for at least two years.
In November 2007, FIFA President Sepp Blatter told the BBC: "If we don't stop this farce, if we don't take care about the invaders from Brazil towards Europe, Asia and Africa then, in the 2014 or the 2018 World Cup, out of the 32 teams you will have 16 full of Brazilian players."