The Vikings’ Andrew Sendejo drew an early unnecessary roughness penalty today against the Ravens when he went in head first against Baltimore receiver Mike Wallace, who was already in the process of being tackled. Wallace’s helmet flew far away from him after the hit, and he stayed down while being attended to by team staff.

The Ravens have announced that Wallace is in the concussion protocol.

Update (1:46 p.m. ET): Wallace is out for the game. However, he was seen frustrated on the sideline looking for his helmet and apparently exchanging words with fans.