Vikings safety Andrew Sandejo laid a hit on Mike Wallace of the Ravens that knocked the wide receiver out of the game.
As Wallace was getting wrapped up by Xavier Rhodes, Sandejo’s shoulder made direct contact with Wallace’s head, which caused his helmet to fly right off.
https://twitter.com/jasonrmcintyre/status/922148942329950214
According to NFL reporter Jason La Canfora, Wallace was reportedly bleeding from the mouth as he was walked off the field by the training staff.
Mike Wallace seems to be bleeding bad from the mouth. Being walked directly off the field by trainers
— Jason La Canfora (@JasonLaCanfora) October 22, 2017
Wallace, who was questionable entering the game, immediately entered the concussion protocol and is questionable to return.