Tua insists that he's had no symptoms since the day after his latest concussion — even though the brain injury suffered on Thursday, September 12 caused him to miss four games on injured reserve.

Dolphins quarterback Tua Tagovailoa, who has an unfortunate ... to as the "fencing position," which is a sign of traumatic brain injury (TBI), according to Healthline. Due the NFL's protocol ...

The doctor involved in clearing Tua Tagovailoa after the Miami Dolphins ... tells PEOPLE is "a clear sign of a brain injury with brainstem dysfunction." The NFL and its player's union issued ...

PALM BEACH — Miami Dolphins quarterback Tua Tagovailoa has not given folks ... concussion and two more at season’s end due to a hip injury. Dolphins coach Mike McDaniel is a believer ...

This damage is called a traumatic brain injury. The U.S. Food and Drug Administration continues to study TBI and encourages the development of medical devices to help diagnose and treat it.