I got in a fight one time with a really big guy, and he said, "I'm going to mop the floor with your face". I said, "You'll be sorry". He said, "Oh, yeah? Why?" I said, "Well, you won't be able to get into the corners very well."
Football is a game when 22 big, strong players run around like crazy for two hours while 50,000 people who really need the exercise sit in the stands and watch them.