Officially, the Patriots said Brady missed practice Wednesday for non-injury related reasons, but word is that he actually went out and had an X-Ray on his non-throwing shoulder. Everything has been reported to be fine, but obviously this is something the Patriots didn't want to get out.
I actually wonder if the NFL will have something to say about this, because it is kind of like lying about an injury. In the end I don't really care, because everything is said to be fine, but you can tell Belichick would have rathered if teams around the league didn't know that he was getting that shoulder checked out.
***UPDATE***
"The New England Patriots quarterback (Tom Brady) will not practice Thursday due to a left shoulder injury that reportedly required X-rays, a league source told ESPN NFL Insider Adam Schefter (ESPN)."
They are saying Brady is still likely to play against Buffalo, but to question if he should play at all. We already know he has been dealing with some elbow issues, and now you add this shoulder. I know we are playing for homefield throughout the playoffs, but I think that is far less important then the health of Brady going into the playoffs.