A new book and documentary describe the only public instance in which the NFL has acknowledged a link between playing football and brain damage.
OTL: Head-On Collision: NFL Acknowledges Link
OUTSIDE THE LINES
Big 12 forum on campus violence
Comparing the dismissals of Les Miles and Art Briles
Marlins' emotional tribute to Jose Fernandez
Remembering Jose Fernandez
Remembering Arnold Palmer
Athletes and protests in America
NFL announces new plan for Super Bowl tickets
The fastest man alive joins OTL
A healing game for America
Questions still surrounding Baylor's Image
Missing Kaepernick's message?
Raiders to Vegas not a done deal?
Mike Wise shares his personal story of abuse
George Washington fires coach amid allegations
Cheating in baseball
Book helped Abby Wambach heal
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