Brock was examined on the sidelines by team doctors and then eventually taken off of the field via a cart. However, he was in the passenger seat and not the back of the cart.
Update:
Brock is questionable to return to the game.
Update 2:
Erin Andrews of FOX reports that, according to the 49ers, it is a toe injury.
Update 3:
Brock later returned to the sideline and was standing fine, but he was without his helmet.
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