3 things to know about safety Damar Hamlin
Damar Hamlin update: Bills player in ICU with 'signs of improvement'
Bills' Hamlin collapses on football field, gets CPR; game suspended
Examining football's health risks after Damar Hamlin's cardiac arrest on the field
Buffalo Bills player is in critical condition after collapsing in game : NPR
Damar Hamlin, cardiac arrest and the importance of CPR
Bills safety Damar Hamlin ready to suit up for first preseason game since going into cardiac arrest – Orlando Sentinel
Explainer: What happened to Buffalo Bills safety Damar Hamlin?