Matt Kenseth's pit stall caught on fire after he left it following a pit stop early in Saturday night's NRA 500 and that fire briefly spread to his gas man John Eicher's shoes as he leaped back across the pit wall.
Pit stall fires sometimes happen when the accelerating rear tires of a car run over a lugnut from an old tire lying in the pit stall. The force from the lugnut getting shot backwards cause sparks, and if those sparks hit any spilled gasoline, a fire quickly ignites. In this case, it happened before Kenseth's crew had a chance to jump back over the wall.
Eicher was unhurt and the fire on both his shoes and on pit road was quickly extinguished.