Who is Damar Hamlin, and what happened to him?
Cardiac arrest causes: What led to Buffalo Bills' Damar Hamlin's collapse?
Nothing in consideration' by NFL for rescheduling Bills vs. Bengals after Hamlin injury
Damar Hamlin and the Existential Crisis of ESPN 'Monday Night Football' - The New York Times
NFL Players React After Damar Hamlin Collapses During MNF
Damar Hamlin injury update: The NFL response shows the league isn't built for this.
Bills-Bengals will not be played following Damar Hamlin injury
Damar Hamlin improving after collapsing, going into cardiac arrest
When Damar Hamlin collapsed, the NFL deployed its emergency action plan - The Washington Post
Buffalo Bills safety Damar Hamlin in critical condition after collapse on field
Bills Players Visit Damar Hamlin in Hospital After His Cardiac Arrest
How TV covered Damar Hamlin's collapse on 'Monday Night Football'
Athletes and Fans Pray for Damar Hamlin After On-Field Collapse - The New York Times