Kansas City Chiefs quarterback Alex Smith (11) passes while pressured by San Francisco 49ers defensive back Perrish Cox (20) during the first half of an preseason NFL football game at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Ed Zurga)

San Francisco 49ers quarterback Colin Kaepernick (7) hands off to running back Frank Gore (21) during the first half of an preseason NFL football game against the Kansas City Chiefs at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Ed Zurga)

Kansas City Chiefs linebacker Akeem Jordan (55) celebrates after sacking the quarterback during the first half of an preseason NFL football game against the San Francisco 49ers at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Ed Zurga)

San Francisco 49ers kicker Phil Dawson (9) is congratulated by holder Lavelle Hawkins (4) following a field goal during the first half of an preseason NFL football game against the Kansas City Chiefs at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Charlie Riedel)

Kansas City Chiefs coach Andy Reid, left, talks with quarterback Alex Smith during the first half of an preseason NFL football game against the San Francisco 49ers at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Ed Zurga)

Kansas City Chiefs quarterback Alex Smith (11) passes to a teammate during the first half of an preseason NFL football game against the San Francisco 49ers at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Ed Zurga)

Kansas City Chiefs quarterback Alex Smith (11) passes behind the blocking of offensive tackle Eric Fisher (72) during the first half of an preseason NFL football game against the San Francisco 49ers at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Charlie Riedel)

San Francisco 49ers coach Jim Harbaugh, right, listens to side judge Ed Bonet during the first half of an preseason NFL football game against the Kansas City Chiefs at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Charlie Riedel)

Kansas City Chiefs running back Knile Davis (34) makes a move before being tackled by San Francisco 49ers linebacker Dan Skuta (51) during the first half of an preseason NFL football game at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Charlie Riedel)

Kansas City Chiefs coach Andy Reid calls a play during the first half of an preseason NFL football game against the San Francisco 49ers at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Ed Zurga)

San Francisco 49ers tight end Garrett Celek (88) is tackled by Kansas City Chiefs safety Eric Berry (29) during the first half of an preseason NFL football game at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Ed Zurga)

Kansas City Chiefs quarterback Alex Smith (11) throws a pass during the first half of a preseason NFL football game against the San Francisco 49ers, Friday, Aug. 16, 2013, in Kansas City, Mo. (AP Photo/Charlie Riedel)

Fireworks fly past the rising moon before a preseason NFL football game between the Kansas City Chiefs and the San Francisco 49ers Friday, Aug. 16, 2013, in Kansas City, Mo. (AP Photo/Charlie Riedel)

Kansas City Chiefs quarterback Alex Smith (11) throws past San Francisco 49ers defensive tackle Will Tukuafu (48) during the first half of a preseason NFL football game, Friday, Aug. 16, 2013, in Kansas City, Mo. (AP Photo/Charlie Riedel)

San Francisco 49ers running back Frank Gore (21) rushes for positive yards during the first half of an preseason NFL football game against the Kansas City Chiefs at Arrowhead Stadium in Kansas City, Mo., Friday, Aug. 16, 2013. (AP Photo/Ed Zurga)