Bills' Damar Hamlin OK to play after suffering cardiac arrest - ESPN
An NFL player's life-threatening heart defect went unnoticed for
Buffalo Bills' Damar Hamlin in critical condition after suffering
J.J. Watt Says He Had a Heart Issue Wednesday and Is Playing Sunday
Bills safety Damar Hamlin in critical condition after suffering
Damar Hamlin's Cardiac Arrest: What We Know and Don't Know - The
Former NFLer, actor Alex Karras dies of kidney failure
Heart problems may end career of Saints' Nick Fairley - The Boston
Sergio Aguero reveals moment he knew his heart problem was serious