The Kansas City Chiefs limped away from last Sunday’s 27-19 loss to the Green Bay Packers with notable injuries.
Linebacker Drue Tranquill (concussion) and safety Bryan Cook (ankle) left the game and did not return. Both were held out of this week’s practices — and declared out for Sunday’s game against the Buffalo Bills.
Tranquill is now in the NFL’s concussion protocol, which is a five-step phased program in which players must complete each phase of rehab without exacerbated symptoms before proceeding to the next.