Who is Damar Hamlin, the Buffalo Bills player who collapsed at Monday's game? : NPR
Damar Hamlin, former Pitt and Central Catholic star, in critical condition after going into cardiac arrest during Bills-Bengals game
Bills-Bengals Game Suspended After Damar Hamlin Collapses on Field
Why did Damar Hamlin collapse during the Bills-Bengals game?
Bills' Hamlin in critical condition after collapse on field - The San Diego Union-Tribune
Here's everything we know (and don't know) about Damar Hamlin's game-ending injury during Bills-Bengals
Buffalo Bills' Damar Hamlin in 'critical condition' after collapse on field
Bills' Damar Hamlin returns in first regular season game since cardiac arrest