Kansas City Chiefs quarterback Alex Smith warms up before facing the San Diego Chargers in an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Lenny Ignelzi)

San Diego Chargers quarterback Philip Rivers (17) throws a pass against the Kansas City Chiefs during the first half in an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Gregory Bull)

San Diego Chargers quarterback Philip Rivers looks to throw a pass against the Kansas City Chiefs during the first half of an NFL football game, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs quarterback Alex Smith is hauled down by San Diego Chargers strong safety Marcus Gilchrist and defensive end Corey Liuget during the first half of an NFL football game, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

San Diego Chargers tight end John Phillips celebrates his touchdown against the Kansas City Chiefs during the first half of an NFL football game, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Lenny Ignelzi)

San Diego Chargers tight end John Phillips celebrates his touchdown against the Kansas City Chiefs during the first half of an NFL football game, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs running back Jamaal Charles, top, leaps over San Diego Chargers cornerback Brandon Flowers (26) and inside linebacker Andrew Gachkar, right, during the first half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs running back Jamaal Charles (25) is upended by San Diego Chargers cornerback Brandon Flowers while scoring a touchdown during the first half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs quarterback Alex Smith (11) is hauled down for a sack by San Diego Chargers outside linebacker Jarret Johnson during the first half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

San Diego Chargers quarterback Philip Rivers warms up before facing the Kansas City Chiefs in an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

San Diego Chargers running back Branden Oliver moves through the Kansas City Chiefs line during the first half of an NFL football game, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Lenny Ignelzi)

San Diego Chargers quarterback Philip Rivers throws a pass against the Kansas City Chiefs during the first half of an NFL football game, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

San Diego Chargers wide receiver Eddie Royal, right, can't make the catch in the final seconds of the second half as Kansas City Chiefs strong safety Ron Parker defends during an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs kicker Cairo Santos kicks a field goal against the San Diego Chargers during the second half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Lenny Ignelzi)

San Diego Chargers wide receiver Eddie Royal, right, can't make the catch in the final seconds of the game as Kansas City Chiefs strong safety Ron Parker defends during the second half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Chris Carlson)

Kansas City Chiefs quarterback Alex Smith looks to throw a pass against the San Diego Chargers during the second half of an NFL football game, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs fullback Anthony Sherman spikes the ball after scoring a touchdown against the San Diego Chargers during the second half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Lenny Ignelzi)

Kansas City Chiefs fullback Anthony Sherman (42) scores a touchdown as San Diego Chargers inside linebacker Donald Butler (56) and strong safety Marcus Gilchrist, left, defend during the second half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

San Diego Chargers head coach Mike McCoy reacts on the sidelines while playing the Kansas City Chiefs during the second half of an NFL football game, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs kicker Cairo Santos (5) celebrates with teammates after kicking a field goal against the San Diego Chargers during the second half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

San Diego Chargers kicker Nick Novak reacts after making a field goal to tie the game against the Kansas City Chiefs during the second half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs quarterback Alex Smith, right, goes down as San Diego Chargers inside linebacker Manti Te'o defends during the second half of an NFL football game, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

San Diego Chargers tight end Antonio Gates hauls in a touchdown pass as Kansas City Chiefs defensive back Kurt Coleman, right, defends during the first half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

San Diego Chargers wide receiver Eddie Royal can't hold on to a pass as Kansas City Chiefs cornerback Phillip Gaines defends during the first half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

San Diego Chargers head coach Mike McCoy, center, celebrates a touchdown from tight end Antonio Gates, right, as quarterback Philip Rivers walks past during the first half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs kicker Cairo Santos kicks a game-winning field goal against the San Diego Chargers during the second half of an NFL football game, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Chris Carlson)

San Diego Chargers quarterback Philip Rivers (17) looks up into the stands after an NFL football game against the Kansas City Chiefs, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs quarterback Alex Smith (11), left, shakes hands with San Diego Chargers quarterback Philip Rivers (17) after an NFL football game Sunday, Oct. 19, 2014, in San Diego. The Chiefs won 23-20. (AP Photo/Denis Poroy)

Kansas City Chiefs kicker Cairo Santos kicks the game-winning field goal against the San Diego Chargers during the second half of an NFL football game Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs quarterback Alex Smith (11), right, leaves the field with Kansas City Chiefs long snapper Thomas Gafford (43) after an NFL football game against the San Diego Chargers, Sunday, Oct. 19, 2014, in San Diego. (AP Photo/Denis Poroy)