Dallas Stars defenseman Miro Heiskanen is week to week with a lower-body injury sustained on a big hit from Vegas captain Mark Stone, a setback that leaves the standout from Finland doubtful for the 4 Nations Face-Off tournament.

Las Vegas’ Stone fell into Heiskanen’s left knee in an awkward collision, which forcing Dallas’ top defenseman out of the game.

Bad things happen in hockey sometimes, and it's nobody's fault. That sure looks like what happened in the Stone and Heiskanen incident, says Ken Campbell.