“The NFL referee issued Patrick Mahomes a final warning regarding his helmet issues, stating that if the problem persists, he will be fined more than he might expect.”

The helmet fracture might not have been solely attributable to the cold, though. As The Athletic’s Tashan Reed laid out before the season, the helmet Mahomes was wearing was a “soft-shell” VICIS helmet that contains “local deformation,” essentially a crumple zone to absorb impact that would have usually moved the entire helmet