Brian Price was a standout defensive lineman at UCLA, being named a First-Team All-American and winning the Pac-10 Defensive Player of the Year, both in 2009.
He left college to play in the NFL where he was drafted in the second round by the Buccaneers.
Injuries cut his professional football career short, but the lasting impacts from the sport may still be affecting him.
A chilling video was recently released of Price where he was disoriented while talking to police, and eventually ran himself through a glass door, shattering it.
Price's wife, US Olympian Candice Price, says she believes her husband is suffering from chronic traumatic encephalopathy, commonly known as CTE.
A report from the New York Times this week revealed an examination of 111 brains of former NFL players showed all but one had the disease.
Price said he doesn't even remember crashing through the door.
He is 28 years old.