Troy Aikman | KERA News

Troy Aikman

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An explosive PBS documentary recently investigated concussions in the NFL -- and it featured former Dallas Cowboys star Troy Aikman.

The Frontline program, "League of Denial," reported on a concussion that the Cowboys quarterback suffered in 1994, as well as a scary exchange that he had with his agent following the incident. Aikman experienced significant memory issues. He sat in a darkened hospital room in North Texas, unable to stare at light.