Good point.  I agree with you and stand corrected.  

I was referring to the Constitutional right to freedom of speech in a larger sense, but I agree with what you are saying here.  You are right, they are in the workplace and have to abide by the rules of the employer as long as it is legal.  That is why at Disneyland they are told how to dress and act by the employer/owners.  It makes sense.  The NFL is going to change the rules on this or they will be losing $Billions of dollars in multiple ways.  You are 100% right.

I will not watch them anymore if this continues.  I have had it with these ungrateful people.  I prefer the NBA anyway, and it is about to get going soon, ....I hope that they don't start doing this crap too.