Smith took a hard hit by linebacker Jo-Lonn Dunbar after making a four-yard run in the first quarter of the game. He remained in the game and went on to throw a touchdown pass, but he eventually left for the locker room after the scoring drive.

It was later reported that Smith was diagnosed with a concussion. Kaepernick has been used this season when the team’s run the Wildcat formation, but starting every down is obviously a different animal. Smith has been oft criticized over the years, but he’s been a solid quarterback for San Francisco over the past two seasons.