Autopsy shows Junior Seau suffered from brain disease caused by head trauma
Junior Seau's death a sobering wake-up call, former NFL players say – The Mercury News
NFL 100: At No. 59, Junior Seau was made to play football, with a huge presence on and off the field - The Athletic
Boston University researchers request Junior Seau's brain
Seau had brain disease that comes from hits to head, NIH finds
Tyler Sash had C.T.E., per New York Times report - Big Blue View
Football Players Diagnosed with CTE, the Brain Disease
Seau death raises concern over concussions - ABC News
What is C.T.E.? - The New York Times