Former Raiders Quarterback Suffered Severe Brain Trauma: Researchers

BOSTON/LOS ANGELES — A study of former Oakland Raiders quarterback Ken Stabler's brain following his July death revealed that the Super Bowl-winning athlete was suffering from moderate brain trauma, a leading specialist in the field said on Wednesday.

The 69-year-old quarterback's brain was the 90th of 94 former National Football League players studied by Boston University's CTE Center since 2008 to show signs of chronic traumatic encephalopathy, said Ann McKee, the center's director.

CTE is closely associated with the repeated head injuries that are commonly experienced in football, hockey and other contact sports, and can lead to aggression and dementia. It has also been a factor in the…