Study: CTE very widespread
Tragic Loss of Superman to Repeated Traumatic Brain Injuries - Brain Injury Law Center
Concussion and Chronic Traumatic Encephalopathy
CTE Found in 99 Percent of Tested NFL Brains - TheWrap
Junior Seau's family sues NFL over brain injuries – The Oakland Press
Junior Seau had Brain Disease Before Suicide
Junior Seau - Pro Football Hall of Fame — - The world's largest hub of Pacific Island content.uu
Junior Seau Foundation Supports Brain Injury Studies and Education at UC San Diego
Doctors say Junior Seau's brain was damaged by head trauma - NBC Sports