Superballs, helmet cars and ugly sweaters: Peyton Manning brings out NFL's goofy side

KANSAS CITY, Mo. — The helicopter hovered high above an X in the parking lot of Arrowhead Stadium before releasing its payload of 10,000 Superballs. The hard-rubber orbs hit the ground and rose in unison, like a swarm of locusts, before ping-ponging off in every direction on their second bounce.

With 10 NFL Films cameras capturing the stunt from every conceivable angle, Peyton Manning and Patrick Mahomes — standing together about 100 yards from the impact zone — instinctively dropped into position as if taking dueling shotgun snaps and attempted to field the Superball tsunami