Dolphins Hall of Famers Nick Buoniconti, left, Larry Little, center, and Don Shula chat before a halftime Hall of Fame ring presentation for quarterback Dan Marino at Dolphins Stadium in this Nov. 6, 2005, file photo. The plight of former Dolphins great Nick Buoniconti has shone new light on football brain injuries -- and the NFL’s moral obligation to do more.
Dolphins Hall of Famers Nick Buoniconti, left, Larry Little, center, and Don Shula chat before a halftime Hall of Fame ring presentation for quarterback Dan Marino at Dolphins Stadium in this Nov. 6, 2005, file photo. The plight of former Dolphins great Nick Buoniconti has shone new light on football brain injuries -- and the NFL’s moral obligation to do more. Miami Herald file Jared Lazarus
Dolphins Hall of Famers Nick Buoniconti, left, Larry Little, center, and Don Shula chat before a halftime Hall of Fame ring presentation for quarterback Dan Marino at Dolphins Stadium in this Nov. 6, 2005, file photo. The plight of former Dolphins great Nick Buoniconti has shone new light on football brain injuries -- and the NFL’s moral obligation to do more. Miami Herald file Jared Lazarus