FWIW Mattison had a limited practice today. So he has not cleared protocol yet.
I thought that if he hasn't cleared it yet, then he can't participate at all...
Huh. Maybe.
Limited practice means individual drills.
There are steps in completing concussion protocol. I don't know all the details of that.
He likely did need to clear some parts of it to do limited practice. There would be more steps to do full practice.
Eta - there are 5 steps of the protocol. Light practice would be steps 2 to 4 which is light cardio to individual drills and the player is evaluated after each step to see if any signs of concussion symptoms are found after the light practice. The final step allows the player to do full practice which is team activities which includes contact with tackling dummies and so on. Then they evaluate again for concussion symptoms after this before clearing the player to play if they found nothing.
So Mattison is in step 2-4 right now. Full practice would be next then final evaluation to clear him to play.