Ken Stabler and C.T.E. - The New York Times
Doctors: N.F.L. Great Ken Stabler Suffered From C.T.E. Due To Concussions – Outside the Beltway
NFL great Ken Stabler had CTE brain disease
Former Vikings defensive lineman Doug Sutherland dies at 73
NFL - Former The Oakland Raiders QB Ken Stabler has passed away at the age of 69: #RIP
Bordow: Ken Stabler left great memories for Moyes brothers
Legendary QB Ken Stabler dies at age 69 – The Mercury News
UA confirms former Alabama, Oakland Raiders quarterback Ken Stabler dead at 69