American football American football American football, referred to as football in the United States and Canada and also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, which is the team controlling the oval-shaped football, attempts to advance down the field by running with or passing the ball, while the defense, which is the team without control of the ball, aims to stop the offense's advance and aims to take control of the ball for themselves. The offense must advance at least ten yards in four
Touch football (American) Touch football (American) Touch football is a variant of American football in which the basic rules are similar to those of the mainstream game (called "tackle football" for contrast), but instead of tackling players to the ground, the person carrying the ball need only be touched by a member of the opposite team to end a down. The game is usually played by amateurs on a recreational basis. Depending on the skill of the players, the available playing field, and the purpose of the game, the rules other than the tackling aspect may remain mostly the same or vary considerably