Football is one of the most popular spectator sports in the world, especially in the United States. Teams typically consist of 45 to 50 players, with 11 players on offense and 11 on defense. The large players are known as blockers, while smaller guys are responsible for catching the ball. There are also medium-sized players who may do both.
During a football game, the game’s score depends on the amount of time the offense has to move the ball. If the offense does not have enough time to move the ball, they will either kick a field goal or punt the ball back to the defense. A punt usually occurs on fourth down, because the offensive team does not want to risk giving the ball away on its current position or risk losing it to the opposing team. In addition, the offense may feel it is too far away to attempt a field goal, and therefore punt the ball.
The goal of the game is to score more goals than the opponent in a 90-minute period. There are also two halftime periods, each with fifteen minutes of play. After the halftime break, the game will resume, with an additional 15 minutes of injury time.