The NFL presently does not have a minor league system. There are minor leagues of pro and semi-pro football but they are not affiliated with the NFL.
None cause it's called minor league baseball
In 1923, the NFL was called the National Football League. The NFL was founded in 1920 as the American Professional Football League. The named was changed to National Football League in 1922.
NFL is the abbreviation for National football League.
NFL stands for "National Football League," which is the professional football league in the USA. CFL stands for "Canadian Football League," which is the professional football league in Canada.
Well im not sure how, but NFL stands for National Football League. There used to be the AFL (American Football League) but the NFL and AFL merged.
The NFC in the NFL
The NFL initials stand for: National Football League. Most people call it (The) National Football League