Damar Hamlin is commemorating the one-year anniversary of his terrifying cardiac arrest with some new ink ... getting a pair of heart hands tattooed on the back of his neck.
The Buffalo Bills safety hit up Alexander Brenes twelve months after he nearly died on a football field to get the piece done ... and as you can see, it came out awesome.
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In addition to the hands, the dark, black tattoo also features an image of an electrocardiogram -- a clear homage to the health scare he suffered while playing against the Bengals on Jan.