Seattle Seahawks quarterback Russell Wilson throws against the San Francisco 49ers in the first half of an NFL football game, Sunday, Dec. 23, 2012, in Seattle. (AP Photo/Elaine Thompson)
San Francisco 49ers quarterback Colin Kaepernick (7) warms up before an NFL football game against the New England Patriots in Foxborough, Mass., Sunday, Dec. 16, 2012. (AP Photo/Elise Amendola)
St. Louis Rams kicker Greg Zuerlein, right, is congratulated by Johnny Hekker after making a 54-yard field goal to defeat the San Francisco 49ers 16-13 in overtime of an NFL football game, Sunday, Dec. 2, 2012, in St. Louis. (AP Photo/Tom Gannam)
San Francisco 49ers quarterback Colin Kaepernick (7) passes against the Chicago Bears during the second half of an NFL game in San Francisco, Monday, Nov. 19, 2012. (AP Photo/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)
St. Louis Rams running back Steven Jackson carries the ball into the end zone for a touchdown past San Francisco 49ers free safety Dashon Goldson, right, during the first quarter of an NFL football game in San Francisco, Sunday, Nov. 11, 2012. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers quarterback Alex Smith (11) drops back to pass against the Arizona Cardinals during the first half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Ross D. Franklin)
San Francisco 49ers running back Kendall Hunter (32) is tripped up against the Arizona Cardinals during the first half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)
Arizona Cardinals cornerback Patrick Peterson (21) tackles San Francisco 49ers wide receiver Mario Manningham (82) during the first half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Matt York)
San Francisco 49ers running back Frank Gore (21) tries to gain yardage as Arizona Cardinals cornerback William Gay (22) and Paris Lenon (51) defend during the first half of an NFL football game on Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)
San Francisco 49ers defensive back Chris Culliver breaks up a pass intended for Arizona Cardinals wide receiver Larry Fitzgerald (11) during the first half of an NFL football game on Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)
An Arizona Cardinals fan reacts to his team during the second half of an NFL football game against the San Francisco 49ers on Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Matt York)