Nick Bosa crashed his San Francisco 49ers teammate’s postgame interview on Sunday night to make a Donald Trump statement with his “Make America Great Again” hat, although he didn’t back it up with much of an actual statement when asked about it.

But let’s focus on the hat itself: was that a violation of NFL rules?

We have an answer from SFGate’s Alex Simon: “Rule 5, Section 4, Article 8 of the NFL rulebook says that the entire time a player is ‘visible to the stadium and television audience,’ including during pregame warmups and in postgame interviews both on the field and in the locker room, they are ‘prohibited from wearing, displaying, or otherwise conveying personal messages either in writing or illustration, unless such message has been approved in advance by the League office.’”

There’s additional language about not wearing messages that “relate to political activities or causes.”

So you might see Bosa get fined like George Pickens was after wearing “open [expletive] always” on his eye black.