San Francisco 49ers quarterback Alex Smith against the St. Louis Rams during the first quarter of an NFL football game in San Francisco, Sunday, Nov. 11, 2012. (AP Photo/Marcio Jose Sanchez)

Photo by: Marcio Jose Sanchez

San Francisco 49ers quarterback Alex Smith against the St. Louis Rams during the first quarter of an NFL football game in San Francisco, Sunday, Nov. 11, 2012. (AP Photo/Marcio Jose Sanchez)