The only thing that was clear after the San Francisco 49ers' loss on Thursday night was that De'Vondre Campbell wouldn't be welcome in the locker room anymore.
Campbell, a starting linebacker for the 49ers most of this season and a nine-year NFL veteran, refused to go into a game against the Rams in the second half and when head coach Kyle Shanahan asked him about it, Campbell said "he didn't want to play today" according to Shanahan. Then Campbell left the sideline for the locker room and didn't return.
NFL teams might put up with a lot, but quitting in the middle of a game is on a short list of things that will typically be unforgivable.