The NHLPA argued Wideman hit Henderson .
Wideman was n't aware of Wideman 's surroundings due to a concussion suffered on a hit moments earlier by Nashville Predators forward Miikka Salomaki .
The NHLPA argued Wideman hit Henderson because Wideman was n't aware of his surroundings due to a concussion suffered on a hit moments earlier by Nashville Predators forward Miikka Salomaki .