Wearing a helmet, Damar Hamlin participates in full Buffalo Bills
Hamlin makes NFL regular-season return after cardiac arrest
Damar Hamlin cleared to resume football activities after January
Bills' Damar Hamlin, who suffered cardiac arrest, cleared by doctors
Damar Hamlin cleared to resume football activities after January
Damar Hamlin cleared to play, 4 months after cardiac arrest
What happened to Damar Hamlin?
Damar Hamlin's Return to Football Looks Almost Normal - The New
Damar Hamlin 'Trending in Right Direction' for Return, per Bills