American football, known in the United States and Canada[1] simply as football, is a competitive team sport known for its physical roughness despite being a highly strategic game. The object of the game is to score points by advancing the football into the opposing team's end zone. The ball can be advanced by carrying it, throwing it, or by handing it from one teammate to the other. Points can be scored in a variety of ways, including carrying the ball over the goal line, throwing the ball to another player past the goal line or kicking it through the goal posts on the opposing side. The winner is the team with the most points when the time expires and the last play ends. Outside of the United States and Canada, the sport is usually referred to as American football (or sometimes as gridiron or gridiron football) to differentiate it from other football games. Full Article on Wikipedia