American football is a game played between two teams of 11 players on a rectangular field. The objective is to score more points than the opponent by carrying or throwing the ball into the end zone. Players have different positions depending on if they are attacking or defending. Points can be scored through field goals worth 3 points, touchdowns worth 6 points, or extra point tries worth 1 or 2 additional points after a touchdown. The NFL is the highest professional American football league composed of 32 teams competing for the championship title.