The 2009 NFL season was the 90th season in the history of the National Football League (NFL). The 50th anniversary of the original eight charter members of the American Football League was celebrated during this season.
The preseason started with the Pro Football Hall of Fame Game on August 9, 2009, and the regular season began September 10, with the reigning Super Bowl XLIII champion Pittsburgh Steelers defeating the Tennessee Titans in overtime. The season ended with Super Bowl XLIV, the league's championship game, on February 7, 2010, at Sun Life Stadium with the New Orleans Saints defeating the Indianapolis Colts 31–17 in Miami Gardens, Florida. The Colts and Saints began the season 14–0 and 13–0 respectively. This was the first time in NFL history two teams started 13–0 or better.