The National Football League (NFL) is extremely popular in the United States, Canada, and England. American football, also called gridiron or professional football in the United States, is an athletic team sport played between two teams of eleven (11) athletes at a rectangular area on the ground with goalposts at each end. There are two offense lines (tight end, running back, and wide receiver), two defense lines (linebackers, corners, and safeties), and three special teams (punters, kickers, and returners). The game of football can be played using a touch-screen helmet, ball markers, or even a video screen that projects the image of the football to the players in the form…