Fútbol americano

Sport played with two teams of 11 players on an oblong ball on a rectangular field marked by vertical yard lines called a "gridiron." It evolved from English rugby and soccer (association football); it differs from soccer chiefly in allowing players to touch, throw, and carry the ball with their hands, and it differs from rugby in allowing each side to control the ball in alternating possessions. The sport originated in the United States.