Steroids in NFL question

[Conrad]

A minimum of 4 weeks? That's still a very minor punishment for steroid abuse as opposed to other sports. In athletics your career is pretty much over if you get caught (Dwain Chambers).

So are steroids tolerated in the NFL? I noticed on a different thread about some baseball player that got caught using and Lyle hated on this guy becuase he was a juicer.

Would there not be as much stigma attached to an NFL player testing positive then?