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Photo by: STEVE RUARK

FILE - In this March 22, 2007 file photo, Hall of Fame tight end John Mackey shows off his Super Bowl V rings at his Baltimore home. Mackey died in 2011 after a 10-year battle with dementia. His wife, Syvia, remained by his side throughout, and she continues to show her support by educating parents, mental health providers and athletes about sports-related head injuries. (AP Photo/Steve Ruark, File)

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