Some tackle football leagues include the National Football League, the Canadian Football League and the Arena Football League. While NFL and CFL only slightly differ in field size and rules, the AFL features a reduced number of players on the field and smaller, strictly indoor field.
The NFL includes 32 teams from across the country and each year crowns its champion in the Super Bowl. Some teams include the Pittsburgh Steelers, Dallas Cowboys and New York Giants.
The CFL features teams such as the Toronto Argonauts and the Calgary Stampeders. The season ends with the championship game called the Grey Cup.
The Arena Football league features 12 teams including the Cleveland Gladiators, Orlando Predators and the Tampa Bay Storm.