He suffered concussion and lost most of his right hand.

He left the game late in the first half after suffering a concussion.

Through his career he suffered several concussions with one in 2008 and 2009.

As a result he did miss one game, suffering a concussion from the hit.

Williams suffered only a concussion and spent the night in a hospital.

He has started all 18 games this season despite suffering a concussion in September.

The other had suffered a broken arm and a concussion.

Montana suffered a concussion and did not return to the game.

George suffered a concussion in the first game, against Buffalo.

An estimated 5 percent of high school players suffer concussions each year.