Running out the clock
In American football, each quarter of a game is measured with a 15-minute game clock, or 12-minute clock in many high school football codes and the German Football League. A team in possession of the lead and the ball will attempt to use up as much of the game clock as possible in order to bring the game to an end more quickly, thus denying the opposition another chance on offense.
AFC Championship Game
The AFC Championship Game is the annual championship game of the American Football Conference (AFC) and one of the two semi-final playoff games of the National Football League (NFL), the largest professional American football league in the United States. The game is played on the penultimate Sunday in January by the two remaining playoff teams, following the AFC postseason's first two rounds. The AFC champion then advances to face the winner of the National Football Conference (NFC) Championship Game in the Super Bowl.