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Football:
- NFL (National Football League, consisting of the National and America Football Conferences)
(The AFL had merged into the NFL) - UFL (external link)
- Football: NFL Europe: (Wiki)
- Football: Canadian Football League: (external link)
- Flag Football
- Pop Warner
- Former: All-America Football Conference, American Football Association,
American Football Conference, Arena Football, United Football League,
USFL, WFL, XFL, and many others (Wiki) - Football – Pro: External Website(s): (NFL) (Pro Football Reference) (Football Database)
- Football – College: External Website(s): (College Reference) (College Team Rankings)
- Former – Developmental Pro Football Program: External link: (SoCal Coyotes)
- Former: College Bowl Games: (Link)
- Former: All-American Football Conference: (Wiki)
- Former – USFL: (Wiki) (Wiki-2) (Wiki-3)
- Former – XFL: (Wiki)
- Former – World Football League: (Wiki)
- Former Minor league: American Association (American football)
- Former Minor league: Atlantic Coast Football League
- Former Minor league: Continental Football League
- Former Minor league: United Football League (1961–1964)