EXPLAINER: What happened to Buffalo Bills safety Damar Hamlin?
Damar Hamlin In Critical Condition After Collapse On Field During Monday Night Football
Buffalo Bills safety Damar Hamlin hospitalized in critical condition after going into cardiac arrest on the field during Monday night's game – The Virginian-Pilot
Bills' Hamlin in critical condition after collapse on field
Buffalo Bills safety Damar Hamlin collapses on field, gets CPR
Damar Hamlin: NFL deny telling players to warm up and resume game after player collapsed
Buffalo Bills' Damar Hamlin in 'critical condition' after collapsing on Monday Night Football
Damar Hamlin's condition shows improvement, Buffalo Bills say - BBC News