Tight end Vernon Davis left the game Sunday in the second quarter for the 49ers against Carolina with a possible concussion. He was escorted to the locker room to get it checked. Source: CBS Sports SteveRobWhatever's Take: The 49ers also lost Garrett Celek earlier in the game. Not good for a team that leans on their tight ends. There hasn't been word on the severity of Davis' injury or if he will be able to return to the game.