His rented buggy overturned, and he was brought on to Richmond unconscious, suffering a possible concussion of the brain.

"There's supposed to be a number of people who are watching for a possible concussion," George told us.

Unconscious due to blow on the head, possible concussion.

Darren Turcotte, the former Ranger, left the game after two periods with a possible concussion.

It's the first time the NFL has spelled out what is to be done when a possible concussion has happened.

Beside some bruises, he had a badly sprained right shoulder and a possible concussion.

Johnsson did not return and has a possible concussion.

"This one has a possible concussion, but otherwise I'm quite sure he'll be up and around in short order."

If the force recorded by the sensors is over 100 Gs, it signals a possible concussion.

A couple of broken ribs, they think, and a possible concussion, but I'll live.