I have hard time believing a player has no say in what is released to the public.
I know for a fact last year rodgers knee was an issue after the charger game but they said nothing. They just never reported it
They did not report it because, as you said in your next post, he practiced and played.
Beyond that, how prudent would it be to say your franchise QB has a knee issue? What would it buy you? No and nothing.
We're being conditioned to think this game is about "athleticism", "technique", schemes and other cerebral things, rainbows and unicorns. C'mon man. There are guys out there like Vontaze Burfict, James Harrison, Ndamukong Suh, et. al., who might go after that knee if they knew about and the opportunity presented itself. These are "bad, bad men", and not just in the positive way we may use that term.
Or taking a real world example close to home, if anybody believes those 2 Jennings TD passes in Super Bowl XLV weren't designed to exploit Polamalu coming off an Achilles injury, of all things, they would be naive.
It just so happens the organization's and the player's interests are aligned when it comes to injury disclosure. Neither benefits from saying anything the league does not require. It has nothing to do with HIPPA.