EXPLAINER: What happened to Damar Hamlin?
Bills player Damar Hamlin is in critical condition after collapsing from a cardiac arrest on the field, team says, Sports
Damar Hamlin: Buffalo Bills safety showing 'remarkable improvement,' doctors say
Damar Hamlin updates: What we know about Bills' safety's condition
Buffalo safety Damar Hamlin collapses during game vs. Bengals, is in critical condition, NFL says; game postponed indefinitely
Damary Hamlin injury: NFL says resuming game was never an option
Damar Hamlin: Buffalo Bills safety showing 'remarkable improvement,' doctors say
Bills-Bengals 'MNF' Game Postponed After Damar Hamlin Injury - Sports Illustrated
Bills' Damar Hamlin in critical condition for cardiac arrest - Los Angeles Times