Dolphins star quarterback Tua Tagovailoa suffered a concussion after taking a hard hit to the head during a run in the third quarter on Thursday night and was down on the field for several minutes.
Tagovailoa attempted a charge up the middle on fourth down and four yards but ran headfirst into the chest of Bills defensive back Damar Hamlin and fell to the ground.
The Dolphins point guard tried to get up but collapsed to the ground looking dazed, with his teammates quickly waving to the medical staff.
Tagovailoa eventually left the field and headed to the Dolphins' locker room.
He was sidelined due to a concussion.
Prime Video reported that the decision came just six minutes after he left the game.
At the time of the injury, Miami was trailing 31-10 in the third quarter.
