Fletcher Cox works for the Philadelphia Eagles. It is a job - a well-paying one - but still a job.
There is a good chance that by choosing this profession, his body will break down before its time and, by middle age, just getting out of bed in the morning will be a painful experience. This job makes it more likely he will contract a debilitating brain disease that will incapacitate him and, increasingly, it is becoming clear that those who play football die before they otherwise would.
So, very sorry to be the one to tell you, but it ain't all pep rallies and let's-go-get-'em for NFL players.