According to Seattle Times reporter Danny O'Neil, Davis will miss the rest of the game:
TE Vernon Davis out with a concussion.— Danny O'Neil (@dannyoneil) December 24, 2012
After seeing this hit, you're not going to be surprised either:
Davis had one catch for 27 yards before departing the game. He didn't have a major impact on the offense, but he's still one of the 49ers' best options when attacking through the air.
Coming into the game, Davis had 39 catches, 516 yards and five touchdowns on the season. His production has slowed down as the year has gone along, but that doesn't diminish his importance to this team.
He's still one of the most athletic tight ends in the NFL, and he causes major matchup issues for any defense that lines up against him. He stretches the field, puts pressure on the middle of the defense and is often too fast for linebackers to cover in the open field.
With Davis out of the lineup, Delanie Walker and Garrett Celek will have to play more. Walker gets a lot of playing time anyway, but San Francisco likes to move him all over the field because of his versatile skill set.
Concussions can be tricky. Davis took a massive shot from Chancellor, and it's hard to tell how serious his injury is, but it wouldn't be surprising if he was forced to sit out for a week or so.
With the NFL playoffs approaching, Davis will want to be on the field, but there's no reason to force anything right now. It's important that he's healthy for the postseason above all else.
Stay tuned for updates regarding Davis' concussion.