Sept. 12 (UPI) -- Miami Dolphins quarterback Tua Tagovailoa, who numerous head injuries earlier in his career, sustained another concussion Thursday and was ruled out during the second half of a game against the Buffalo Bills.
Tagovailoa sustained the head injury with about 4:30 remaining in the third quarter. The Dolphins quarterback took off on a scramble at the start of the play, before lowering his head into the chest of Bills safety Damar Hamlin.