NFL player Damar Hamlin in critical condition after suffering cardiac arrest
Buffalo Bills safety Damar Hamlin collapses on field, gets CPR
A timeline of the NFL's response after Damar Hamlin collapsed
Bills' safety Poyer ruled out against Dolphins, opening possibility of Hamlin making season debut - WWAYTV3
Bills' Hamlin in critical condition after collapse on field
Covering the possible causes and diagnoses of Damar Hamlin's injury - Poynter
EXPLAINER: What happened to Damar Hamlin?
Bills safety Damar Hamlin in critical condition after cardiac arrest; game suspended
Damar Hamlin, former Pitt and Central Catholic star, in critical condition after going into cardiac arrest during Bills-Bengals game