Tagovailoa revealed he doesn't remember being carted off the field after he suffered a concussion
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This resulted in an investigation into the concussion check, and while both the NFL and players association agreed the protocols were properly applied, they found it to be insufficient. In turn, they updated the protocols.
Serious injuries are also not new to the third-year quarterback.
At Alabama, he had a procedure for a high ankle sprain in October 2019, which caused him to miss one game.
A month later, Tagovailoa dislocated his right hip against Mississippi State, which prematurely ended his college career.
In his pro career, Tagovailoa has dealt with rib fractures, a thumb injury and a fractured middle finger on his throwing hand.