When Damar Hamlin collapsed, the NFL deployed its emergency action plan - The Washington Post
Damar Hamlin's Pain Is Not a Feel-Good Story
Damar Hamlin, former Pitt and Central Catholic star, in critical condition after going into cardiac arrest during Bills-Bengals game
Bills player Damar Hamlin is in critical condition after on-field collapse and Bills-Bengals game is postponed – NBC Palm Springs
Buffalo Bills safety Damar Hamlin in critical condition after collapse on field
Bills safety Damar Hamlin in critical condition after cardiac arrest; game suspended
Who is Damar Hamlin, the Buffalo Bills player who collapsed at Monday's game? : NPR
Bills-Bengals game won't be resumed this week after Damar Hamlin collapse, NFL says
Buffalo Bills safety Damar Hamlin collapses on field, gets CPR
Damar Hamlin's collapse is the latest in history of medical emergencies in sports - ABC News
Patriots players express support for Damar Hamlin after in-game collapse - Pats Pulpit