Here is the NFL concussion protocol.

Mahomes would have to pass through each stage symptom free & be cleared by an independent neurologist.

Each concussion is unique, can return in a week or take longer in a lot of cases. Going to have to watch practice reports. #BillsMafia pic.twitter.com/jiLXEevU9D

— Banged Up Bills (@BangedUpBills) January 17, 2021