Researchers at Boston University have determined that former Oakland Raiders quarterback Ken Stabler had the degenerative brain disease chronic traumatic encephalopathy (CTE), believed to be caused by repeated blows to the head. Though Stabler died in July at age 69 of colon cancer, a postmortem examination of his brain revealed that, on a scale of 1 to 4, the Hall of Fame finalist had high Stage 3 CTE.
The disease can currently only be determined definitively after death and is believed to be related to concussions. Stabler joins a list of over 100 football players reported to have CTE.
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