Giants’ RB Andre Brown left yesterday’s game with concussion-like symptoms and tweeted shortly after from the locker room that “everything is ok.”

It turns out, everything is not ok. Tom Coughlin confirmed today that Brown does indeed have a concussion, sustained while getting his head bounced off the turf while returning a kickoff .

Our friend Tom Rock of Newsday tweeted today that the NFL may look to fine Brown for engaging in social media during the course of a game….

The league is reviewing Andre Brown’s in-game Tweet from yesterday in which he said he was ok. Can’t do that. Probably will be fined.

— Tom Rock (@TomRock_Newsday) October 8, 2012

Rock also reports that the original tweet has been deleted.