VIDEO: Coach Caught on Camera Apparently Trying to Trip Rival Cheerleader

WATCH: You Won't Believe How Bank Manager Thwarts Would-Be Robber

The doctor who inspired the feature film "Concussion" said he'd bet his medical license that O.J. Simpson suffers from the degenerative brain disease, chronic traumatic encephalopathy (CTE).

Dr. Bennet Omalu based his diagnosis on Simpson's profile and large head.

"If you have a bigger head, that means your head is heavier," Omalu said. "That means the momentum of your impact would be bigger. It's basic physics."

Simpson is seeking a new trial in hopes of overturning a 33-year sentence for armed robbery, kidnapping and other felonies.

His legal team began playing up the possibility that the Hall of Famer has brain damage.

"I was knocked out of games for such head blows repeatedly in the 1970s and other times I continued playing despite hard blows to my head during football games," Simpson said in 2012.

And while the only way to diagnose CTE is to examine the brain after death, Simpson's former business manager knows something is wrong.

"Everybody who knows him knows there's a problem there," Norman Pardo said. "There's something wrong with his head and there has been for a long time."

Read more here, and watch Geraldo Rivera discuss the case above.

NFL, Players Reach Proposed $765M Settlement of Concussion-Related Lawsuits

Mother Says Camera Flash Saved Her Baby Son's Life

TX Court Sides With Cheerleaders Who Held Biblical Signs at Games