The NFL Players Association has fired the unaffiliated doctor involved in the decision to clear Miami star Tua Tagovailoa of concussion as the fallout into the ugly incident continues.

ESPN reports the neurotrauma consultant made “several mistakes” while evaluating the Dolphins quarterback after his head knock against Buffalo in last Sunday’s clash.

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Tagovailoa was cleared to return against the Bills despite struggling to walk after hitting his head crashed into the turf.

He was taken down to the locker room, but passed his concussion test with the Dolphins saying it was a back injury suffered earlier in the game that caused him to stumble.

The 24-year-old then played in Thursday night’s clash against Cincinatti and suffered a serious concussion after his head crashed into the ground again.

Tua Tagovailoa is tended to by medial staff after suffering a concussion. Credit: Andy Lyons/Getty Images

His arms appeared to seize up and he remained on the field for several minutes before he was taken off the field on a stretcher.

He was later diagnosed with a concussion but initial scans confirmed no further damage.

The NFL and NFLPA will likely change their concussion protocols in the wake of the incident.

“The NFL and the NFLPA agree that The NFLPA’s Mackey-White Health & Safety Committee and the NFL’s Head Neck and Spine Committee have already begun conversations around the use of the term ‘Gross Motor Instability’ and we anticipate changes to the protocol being made in the coming days based on what has been learned thus far in the review process,” the joint statement said.

“The NFL and NFLPA share a strong appreciation for the unaffiliated neurotrauma consultants who contribute their time and expertise to our game solely to advance player safety. This program has made our game safer for the athletes who play it for the past twelve seasons.”

Dolphins coach Mike McDaniel defended his side’s handling of the situation, saying there was no indication of a head injury during the Bills game.

“I’m in steady communication with this guy day in and day out,” McDaniel said. “We’re talking about high-level football conversations about progressions and defenses and recalling stuff from two weeks previous and then him having to reiterate a 15-word play call. All things, absolutely no signs. There was no medical indication, from all resources, that there was anything regarding the head.

Tagovailoa tweeted he was feeling better, but there is no timetable on his return to action.

Crowd chants ‘LJ’ as sporting icon bows out of basketball.

Crowd chants ‘LJ’ as sporting icon bows out of basketball.