Publish on 3717 br American football, referred to as football in the United States and Canada, and also known as "gridiron football" or simply "gridiron", is a sport played by two teams of eleven players on a rectangular field with goalposts at each end. ... The team with the most points at the end of a game wins. br Video has a re use permission. my object is to teach how to play football and i give credit to owner . link - br www.youtube.