NFL Chief Medical Officer Dr. Allen Sills said on the NFL Network Friday that Miami Dolphins quarterback Tua Tagovailoa was checked for concussion symptoms every day this week.

Tagovailoa, 24, left Thursday night's 27-15 loss against the Cincinnati Bengals in the second quarter after appearing to be knocked unconscious following a sack. He was taken off the field on a stretcher and taken to a local hospital with head and neck injuries, though he was released from the hospital and flew back with the team to South Florida.

Tagovailoa was being monitored ahead of Thursday's game after suffering an injury last weekend and returning to the game. Following a hit in a win over the Buffalo Bills, Tagovailoa stumbled after he got back to his feet and he was listed as questionable to return to that game with a head injury.

However, after undergoing tests, the team determined a back injury, not a head injury, had caused the stumble, and he was permitted to return to the game.