Stress
You've got to be just as athletic as the rest of the football team and, like them, have to work on your moves for a lengthy offseason. But you have to do it for about one percent of the income. We'd say that's fairly stressful.
The stress is real in this job when it comes to staying fit and eating healthy. Not to mention the roar of the crowd, who may be shouting any number of inappropriate or unhelpful phrases at you. Hopefully you have thick skin and don't let your nerves show—and maybe, if you get close enough, give one of those unruly fans a high kick to the chin.