In a recent Supreme Court Decision, SCOTUS declared that the NFL consists of 32 separate entities.
I am not a lawyer, I don't play one on television, and I do not work in a law library; I have not been following all the details of the cases. To me, this decision would seem to support the claim of Williams and Williams that their drug test should be subject to Minnesota State Law, since their employer is based in Minnesota. There is one part of state law that the League and the Vikings failed to follow, according to the suit.