College-turned-NFL teammates Nick Herbig, Keeanu Benton build off strong professional debuts
NFL preseason game postponed: player hurt in collision
Cowboys safety Kavon Frazier suffers shoulder injury in preseason loss to Cardinals
Pro football's troubled history of on-field medical emergencies
As Damar Hamlin Stays in Hospital, N.F.L. Won't Resume Suspended Game This Week - The New York Times
Daewood Davis of Dolphins carted off field after collision; preseason game vs. Jaguars halted
Dolphins WR Daewood Davis carted off with injury; Miami-Jacksonville game ends early
NFL still considering scheduling options, Week 18 unchanged
Covering the possible causes and diagnoses of Damar Hamlin's injury - Poynter