What is football blue 42?

Football Blue 42 is a play call that is commonly used in American football. It is often associated with quarterback Peyton Manning, who used the phrase frequently during his time with the Indianapolis Colts. The play itself refers to a specific formation and set of routes that the offense will run in an attempt to gain yards and score points. While the specifics of the play can vary from team to team and game to game, the phrase "Blue 42" remains a staple of the sport.