Explainer: What happened to Buffalo Bills safety Damar Hamlin?
Damar Hamlin, former Pitt and Central Catholic star, in critical condition after going into cardiac arrest during Bills-Bengals game
Damar Hamlin's Injury Spurs New Concerns About Injuries on NFL Fields - Bloomberg
Buffalo Bills safety Damar Hamlin collapses on field, gets CPR
Damar Hamlin injury decision for Bengals-Bills game, according to NFL
Monday Night Football' Game Postponed After Bills Player Collapses On Field And Gets CPR; Damar Hamlin In “Critical Condition” At Hospital – Deadline
Bills-Bengals Game Won't Resume This Week After Damar Hamlin Collapse
Bills safety Damar Hamlin in critical condition after suffering cardiac arrest
What Happened to Damar Hamlin? What We Know After Bills Player Collapses, Suffers Cardiac Arrest On Field – NBC Chicago
Damar Hamlin in critical condition after collapse at Cincinnati game