A significant piece of the wealth that the NFL owners garner is a result of the enormous TV revenues they get - and those revenues are supported by a legislatively granted exemption from the antitrust laws that has been made applicable to sports leagues primarily the NFL.
I have the most profound respect for the Department of Justice and the FTC. We in Europe are a younger and I would say junior institution to the historical antitrust experience of the US.
The only question to ask yourself is how much are you willing to sacrifice to achieve this success?