When does Earnin' It: The NFL's Forward Progress return?

The NFL was formed in 1920 as the American Professional Football Association (APFA) before renaming itself the National Football League for the 1922 season. The NFL is the wealthiest professional sports league in the world by revenue and the sports league with the most valuable teams. The Green Bay Packers hold the most combined NFL championships with thirteen, winning nine titles before the Super Bowl era and four Super Bowls afterwards. The Kansas City Chiefs are the reigning league champions.