San Francisco 49ers quarterback Alex Smith (11) warms up prior to an NFL football game against the Arizona Cardinals, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)

Arizona Cardinals quarterback John Skelton (19) warms up prior to an NFL football game against the San Francisco 49ers, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Matt York)

San Francisco 49ers wide receiver Michael Crabtree (15) pulls in a touchdown pass as Arizona Cardinals cornerback Patrick Peterson (21) defends during the first half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)

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 head coach Jim Harbaugh throws a pass as the team warms up prior to an NFL football game against the Arizona Cardinals, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Francisco 49ers' Alex Smith (11) celebrates his second touchdown pass of the game against the Arizona Cardinals with Alex Boone, left, during the first half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Francisco 49ers head coach Jim Harbaugh, right, talks with Alex Smith (11) during a timeout in the first half of an NFL football game against the Arizona Cardinals Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Francisco 49ers wide receiver Michael Crabtree (15) scores a touchdown 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 wide receiver Michael Crabtree (15) breaks the tackle of Arizona Cardinals cornerback William Gay (22) during the first half of an NFL football game, 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, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)

San Francisco 49ers wide receiver Michael Crabtree (15) pulls in a touchdown pass as Arizona Cardinals cornerback Patrick Peterson (21) defends 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 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, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)

Arizona Cardinals' John Skelton, left, passes under pressure from San Francisco 49ers' Aldon Smith, right, during the first half of an NFL football game Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Francisco 49ers' Chris Culliver, bottom right, intercepts a pass intended for Arizona Cardinals' Larry Fitzgerald (11) as 49ers' Tarell Brown, far left, Carlos Rogers (22), Donte Whitner (31), Perrish Cox (20), Dashon Goldson, far right, and Cardinals' Andre Roberts (12) all look on during the first half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Francisco 49ers outside linebacker Aldon Smith (99) salutes the fans after sacking Arizona Cardinals quarterback John Skelton during the second half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. (AP Photo/Matt York)

San Francisco 49ers head coach Jim Harbaugh, right, shakes hands with Arizona Cardinals head coach Ken Whisenhunt after their NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. The 49ers won 24-3. (AP Photo/Ross D. Franklin)

Arizona Cardinals quarterback John Skelton sits on the bench during the second half of an NFL football game against the San Francisco 49ers, Monday, Oct. 29, 2012, in Glendale, Ariz. The 49ers won 24-3. (AP Photo/Paul Connors)

San Francisco quarterback Alex Smith (11) throws the ball against the Arizona Cardinals at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. (Ric Tapia/NFL)

San Francisco running back Frank Gore (21) runs the ball against the Arizona Cardinals at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. Gore finished the game with 55-yards rushing in a 49ers 24-3 win. (Ric Tapia/NFL)

Arizona Cardinals quarterback John Skelton (19) throws the ball against the San Francisco 49ers defense at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. (Ric Tapia/NFL)

San Francisco wide receiver Michael Crabtree (15) runs after a catch in front of Arizona Cardinals defensive back Patrick Peterson (21) at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. Crabtree finished the game with 72-yards receiving and two touchdowns in a 49ers 24-3 win. (Ric Tapia/NFL)

San Francisco wide receiver Michael Crabtree (15) steps out of bounds after a catch in front of Arizona Cardinals defensive back Patrick Peterson (21) at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. Crabtree finished the game with 72-yards receiving and two touchdowns in a 49ers 24-3 win. (Ric Tapia/NFL)

San Francisco tight-end Vernon Davis (85) is tackled by Arizona Cardinals defense at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. (Ric Tapia/NFL)

San Francisco wide receiver Randy Moss (84) scores a 47-yard touchdown against the Arizona Cardinals defense in the second half at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. (Ric Tapia/NFL)

San Francisco linebacker Patrick Willis (52) hits Arizona Cardinals quarterback John Skelton (19) at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. (Ric Tapia/NFL)

San Francisco wide receiver Michael Crabtree (15) catches a touchdown in front of Arizona Cardinals defensive back Patrick Peterson (21) at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. Crabtree finished the game with 72-yards receiving and two touchdowns in a 49ers 24-3 win. (Ric Tapia/NFL)

San Francisco wide receiver Michael Crabtree (15) scores a touchdown against the Arizona Cardinals defense in the first half at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. Crabtree finished the game with 72-yards receiving and two touchdowns in a 49ers 24-3 win. (Ric Tapia/NFL)

San Francisco wide receiver Michael Crabtree (15) scores a touchdown against the Arizona Cardinals defense in the first half at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. Crabtree finished the game with 72-yards receiving and two touchdowns in a 49ers 24-3 win. (Ric Tapia/NFL)

San Francisco wide receiver Michael Crabtree (15) scores a touchdown against the Arizona Cardinals defense in the first half at University of Phoenix Stadium in Glendale, Arizona on October 29, 2012. Crabtree finished the game with 72-yards receiving and two touchdowns in a 49ers 24-3 win. (Ric Tapia/NFL)

Arizona Cardinals quarterback John Skelton (19) throws against the San Francisco 49ers during the second half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. The 49ers won 24-3. (AP Photo/Paul Connors)

Arizona Cardinals wide receiver Larry Fitzgerald (11) breaks the tackle of San Francisco 49ers free safety Dashon Goldson during the second half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. The San Francisco 49ers won 24-3. (AP Photo/Ross D. Franklin)

Arizona Cardinals wide receiver Andre Roberts (12) has his pass broken up by San Francisco 49ers cornerback Tarell Brown during the second half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. The San Francisco 49ers won 24-3. (AP Photo/Ross D. Franklin)

Arizona Cardinals wide receiver Larry Fitzgerald (11) reacts to a missed pass against the San Francisco 49ers during the second half of an NFL football game, Monday, Oct. 29, 2012, in Glendale, Ariz. The 49ers won 24-3. (AP Photo/Paul Connors)