Remembering the legacy of Chuck Hughes, the only NFL player to die on-field due to a heart attack
Sports Stars Who Had Cardiac Arrest on the Field Like Damar Hamlin
5-at-10: Hamlin collapse offers true perspective, NFL power poll, bowl game fun
Recalling Chuck Hughes, a former Eagle who was the only NFL player to die on the field
Damar Hamlin's collapse is the latest in history of medical emergencies in sports - ABC News
Biography In The Works On Texas Western's Chuck Hughes
49ers mourn death of player – The Denver Post
Damar Hamlin injury update, Bills-Bengals game suspended
Pro football's troubled history of on-field medical emergencies