But that's exactly what happened last night between the Columbus Blue Jackets and Dallas Stars, when Stars forward Rich Peverley collapsed on the bench only 6:23 into the first period.
According to UT Southwestern Dr. Gil Salazar, Peverley had a 'cardiac event,' but it was treated successfully:
When Peverley collapsed, the Stars' medical staff immediately sprung into action, and play stopped on the ice.
Due to the serious nature of the incident, the Stars communicated to the Blue Jackets that their players were shaken and didn't want to just keep playing hockey as if something happened. The Blue Jackets understood, and will reschedule at some point.
Hopefully Peverley continues to recover and doesn't have any more episodes like this. Best wishes, Rich.