football (American)

American football is a competitive team sport where two teams of eleven players each aim to score points by advancing an oval-shaped ball into the opposing team’s end zone, either by running with it or passing. The game is played on a rectangular field marked with yard lines, and teams take turns on offense and defense. The offense has four attempts, called downs, to move the ball ten yards forward; if successful, they continue, or else the ball turns over to the other team. Points are scored mainly through touchdowns, field goals, and extra points.