American Football- Pansy ass rugby for those too wimpy to be willing to call a knee to the balls fair play and feel the need to wear a cup. Also loved by those who wish to wear spandex and grope other men on a field. Very similar to wrestling in this manner. Often loved because of cultural institution in the form of high school.
I would change only one thing, inserting "very large, sweaty men" somewhere in the line "Also loved by those who wish to wear spandex and grope other men on a field," given your average American linebacker masses about as much as any two rugby players.