Miami Dolphins quarterback Tua Tagovailoa was placed in the NFL concussion protocol on Monday and his status for Sunday's game against the New England Patriots is in question.
Dolphins coach Mike McDaniel announced the injury on Monday a day after Tagovailoa played all of Miami’s 26-20 loss to the Green Bay Packers.
"It was something he met with doctors today and discussed some symptoms," McDaniel said.
It's uncertain if Tagovailoa suffered a concussion, but McDaniel said he had the symptoms to justify being placed in the league's protocol.
If Tagovailoa is not cleared, Teddy Bridgewater will get the start in the Dolphins' extremely important game at New England.
The Dolphins are 8-7 after Tagovailoa threw three interceptions in Sunday's setback at the hands of the Packers and have lost four in a row and own the tiebreaker over the 7-8 Patriots for the final playoff spot in the AFC.
Tagovailoa missed two October games after suffering a concussion in Miami's 27-15 Week 4 loss to the Cincinnati Bengals. He was hospitalised after being whipped around and flung to the ground by the Bengals' Josh Tupou, causing his head to snap back onto the turf.
He then laid flat on his back with his hands in front of his face while his fingers bent at awkward angles in a 'fencing response' caused by a traumatic blow to the brain.
The Dolphins were heavily criticised for having Tagovailoa on the field for that game four days after what transpired in a 21-19 win over the Buffalo Bills.
After being pushed to the ground by linebacker Matt Milano, Tagovailoa's helmet slammed into the turf. He managed to get back on his feet quickly, but after shaking his head and looking woozy, he appeared to lose his balance as he stumbled back to the ground.
He went to the locker room to be assessed by the team's medical staff, with the Dolphins announcing a head injury that made him questionable to return.
He only missed three snaps, however, returning for the start of the third quarter – a decision that prompted the NFL and National Football League Players Association to conduct a joint review of how the decision was made to allow Tagovailoa to return.
McDaniel maintained, however, the proper protocols were followed and that Tagovailoa was cleared by the team and the independent neurologist.
The neurotrauma consultant who evaluated and cleared Tagovailoa was later fired by the NFLPA.