Indoor Football League - Wikipedia
List of defunct National Football League franchises - Wikipedia
U.S. Open Cup - Wikipedia
National Football League - Wikipedia
United States Soccer Federation - Wikipedia
Los Angeles Rams - Wikipedia
National Football League - Wikipedia
German Football League - Wikipedia
United States Women's Football League - Wikipedia
Indoor American Football Leagues in the United States: American Indoor Football, Arena Football League, Champions Professional Indoor Football League
Seattle Seahawks, American Football Wiki
Detroit Lions - Wikipedia