San Francisco 49ers quarterback Alex Smith (11) passes the ball in the second quarter of an NFL football game against the Detroit Lions in Detroit, Sunday, Oct. 16, 2011. (AP Photo/Rick Osentoski)

Associated Press
San Francisco 49ers quarterback Alex Smith (11) passes the ball in the second quarter of an NFL football game against the Detroit Lions in Detroit, Sunday, Oct. 16, 2011. (AP Photo/Rick Osentoski)
San Francisco 49ers quarterback Alex Smith (11) passes the ball in the second quarter of an NFL football game against the Detroit Lions in Detroit, Sunday, Oct. 16, 2011. (AP Photo/Rick Osentoski)
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