Dolphins quarterback injury raises concussion concerns

Tua Tagovailoa was carted off the field on Thursday night with head and neck injuries, sparking questions about whether he should've been playing in the first place.
2:00 | 09/30/22

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Transcript for Dolphins quarterback injury raises concussion concerns
>> JON KARL FOR US, THANK YOU. >>> NOW TO CONCERN ABOUT TUA TAGOVAILOA AFTER HE WAS CARTED OFF THE FIELD LAST NIGHT WITH HEAD AND NECK INJURIES. AND NOW QUESTIONS ABOUT WHETHER HE SHOULD HAVE BEEN PLAYING IN THE FIRST PLACE. WILL REEVE HAS THE STORY. >> Reporter: LAST NIGHT A DIFFICULT SCENE, DEFINITELY A CONCUSSION AND NOW AN INVESTIGATION SHOULD THAT QUARTERBACK HAVE EVEN BEEN ON THE FIELD? >> DOWN HE GOES. SLUNG DOWN ON HIS OWN 48 YARD LINE. >> Reporter: IN THE SECOND QUARTER OF THE MIAMI DOLPHINS PRIME TIME GAME AGAINST THE BENGALS, MIAMI'S THIRD YEAR QUARTERBACK, TUA TAGOVAILOA, WAS THROWN VIOLENTLY TO THE GROUND, SMASHING HIS HEAD AND BACK ON THE TURF. YOU CAN SEE HIS FINGERS SEIZING, WHAT'S KNOWN AS FENCING, AN IMMEDIATE SIGN OF NEUROLOGICAL TRAUMA. >> RIGHT AWAY YOU GET CONCERNED. THEY'RE BRINGING A STRETCHER OUT. >> Reporter: ANNOUNCING TAGOVAILOA WAS TAKEN TO THE HOSPITAL WITH HEAD AND NECK INJURIES BUT WAS DISCHARGED OVERNIGHT AND FLEW HOME TO MIAMI WITH THE TEAM. >> IT WAS A SCARY MOMENT. HE WAS EVALUATED FOR CONCUSSION AND HE'S IN THE CONCUSSION PROTOCOL. >> Reporter: JUST DAYS EARLIER, TAGOVAILOA OBVIOUSLY STAGGERED AFTER A BIG HIT AGAINST THE BUFFALO BILLS, THAT REACTION, ANOTHER SIGN OF TRAUMA THAT CONCUSSION EXPERTS DEEM A RED LINE THAT WHEN CROSSED SHOULD PROHIBIT A PLAYER FROM RETURNING TO THE GAME BUT HE DID COME BACK THAT DAY, EVENTUALLY LEADING HIS TEAM TO VICTORY. HE AND THE DOLPHINS CLAIMING THAT WAS A BACK INJURY AND AS SUCH WOULD NOT BE SUBJECT TO MANDATORY CONCUSSION PROTOCOL. AN NFL AND NFL P.A. JOINT REVIEW IS UNDER WAY TO DETERMINE WHETHER OR NOT THE DOLPHINS FOLLOWED PROPER PROCEDURE. DR. CHRIS NOWINSKI IS A CRITIC. >> NOW WE HAVE TO WORRY WHAT IT WILL DO FOR THE REST OF HIS SEASON AND HOW IT WILL AFFECT HIM THE REST OF HIS LIFE. >> Reporter: THE PLAYERS ASSOCIATION TWEETING, OUR CONCERN TONIGHT IS FORTU TUA. OUR INVESTIGATION

This transcript has been automatically generated and may not be 100% accurate.

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