KnowraNational Football LeagueLinked fromLinked fromThe 28 pages that link to National Football League, each with the reason it gives.All 28Broader topic 4Related 6Narrower topic 15Compared with 3American footballRelated: Its growth made professional football a major national spectator sport.Jim ThorpeRelated: Thorpe served as the league's first president and helped promote its early organization.AFL–NFL mergerRelated: The NFL negotiated the agreement and became the continuing league after the merger.Alicia KeysRelated: Keys performed “America the Beautiful” at the 2013 Super Bowl pregame ceremony.NBC SportsRelated: NBC Sports broadcasts NFL games, including Sunday Night Football.Bennet OmaluRelated: Omalu’s findings challenged the league’s account of the risks posed by repeated head impacts.