Who is Damar Hamlin, the Buffalo Bills player who collapsed at Monday's game? : NPR
Buffalo Bills player Damar Hamlin in critical condition; Monday Night Football postponed
Buffalo Bills' Hamlin in critical condition after collapse on field
Condolences pour in for Damar Hamlin, who's in critical condition after an NFL game – WABE
Bills safety Damar Hamlin in critical condition after collapse during game
Bills' Damar Hamlin in Critical Condition After Hit During Bengals Game - The New York Times
Did Damar Hamlin experience commotio cordis? What to know about the rare phenomenon
Life and death on the gridiron
Bills GM: Damar Hamlin medically cleared to resume playing
Damar Hamlin visits Bills teammates for 1st time since injury