Adrian Colbert, Aldrick Robinson in concussion protocol following Titans game

The San Francisco 49ers are dealing with a couple notable injuries as they begin preparations for Week 16. Head coach Kyle Shanahan announced that wide receiver Aldrick Robinson and free safety Adrian Colbert are both in the concussion protocol following Sunday’s game.

Robinson suffered his concussion midway through the first quarter when he dove for a pass. He landed on on the ground and a Titans defensive back landed on him as the play ended. He was listed as having a head and wrist injury. Shanahan said the wrist had been bugging him previously, and he landed on it wrong.

Colbert had concussion symptoms following the game, and they were still there today when the players reported to the facility. There is no word on when in the game it happened, but he has been placed in the protocol. To clear the protocol, a player must first not have symptoms while at rest, and then after exertion. There is a basic contact test to wrap it up. Usually players in the protocol do not practice on Wednesday, but then Thursday and Friday tell us where they stand for the coming week’s game.

If Robinson cannot play, that means more work for rookie receiver Kendrick Bourne. Louis Murphy will get more snaps as well, but for long-term development, Bourne will be the guy to watch, coming off the best game of his young career. If Colbert cannot play, Dexter McCoil and Tyvis Powell would compete for playing time at free safety.