Bills players ask for prayers as Damar Hamlin is hospitalized in critical condition after collapsing on field
A timeline of the NFL's response after Damar Hamlin collapsed
Who is Damar Hamlin, the Buffalo Bills player who collapsed at Monday's game? : NPR
Damar Hamlin suffered cardiac arrest during game, heartbeat restored on field, Bills say
Why did Damar Hamlin collapse during the Bills-Bengals game?
Buffalo Bills' Damar Hamlin critical after chilling cardiac arrest on field
Buffalo Bills' Damar Hamlin in critical condition after collapse on field
With heavy hearts, NFL players go back to work - The Japan Times
Damar Hamlin Showing Signs of Improvement After Collapse During NFL Game - WSJ