In football you receive a penalty. In baseball you make an error. In football the specialist comes in to kick. In baseball the specialist comes in to relieve somebody. Football has hitting, clipping, spearing, piling on, personal fouls, late hitting and unnecessary roughness.
Baseball has the sacrifice.
In baseball, if it rains, we don't go out to play. Baseball has the seventh inning stretch. Football has the two minute warning. Football is rigidly timed, and it will end even if we've got to go to sudden death. In football, during the game in the stands, you can be sure that at least twenty-seven times you're capable of taking the life of a fellow human being.