Nothing.

by KGB, Belly o. the Beast, Tuesday, July 27, 2010, 07:49 (5797 days ago) @ domer.mq

Which is why blacklisting these guys at the NFL level is the only remedy that's really going to have any sort of teeth in it. If they run the legitimate risk of being suspended or barred from pursuing their livelihood by breaking rules related to premature contact, I suspect that a lot of this bullshit would dry up.