Why did Damar Hamlin collapse during the Bills-Bengals game?
Bills safety Damar Hamlin in critical condition after collapse during game
Buffalo Bills' Damar Hamlin went into cardiac arrest after hit during Monday night's game
Hamlin expect to make NFL return on Sunday after on-field cardiac arrest, National News
Damar Hamlin Speaks Out for the First Time After Cardiac Arrest – The Hollywood Reporter
Bills safety Damar Hamlin in critical condition after cardiac arrest; game suspended
Damar Hamlin speaks publicly for first time since cardiac arrest – NBC Sports Boston
NFL players, communities rally for Bills safety Hamlin
Shocking scene as Bills player Damar Hamlin suffers cardiac arrest at NFL game