San Francisco, CA – San Francisco 49ers quarterback Alex Smith left Sunday's game against the St. Louis Rams with a concussion.
Smith suffered the concussion late in the first quarter on a quarterback scramble. As he began to slide, he turned his back to linebacker Jo-Lonn Dunbar, who hit Smith around the neck area.
Smith stayed in the game temporarily and even threw a touchdown pass to Michael Crabtree in the second quarter.
Colin Kaepernick replaced Smith later in the frame.
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