Newly released photos show the fatal wound Austin Metcalf suffered when Karmelo Anthony stabbed him with a $13 Walmart knife during a confrontation at a Texas high school track meet.

The grisly images, made public Friday by Collin County court, show a deep gash in the 17-year-old football player’s chest, with a forensic ruler placed beside the wound.

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Other photos show the blood-soaked interior of a jacket, including heavy staining around the lining and apparent punctures in the fabric. The coat belonged to Joshua Rebmann, a Liberty High School football coach who rushed to render aid to Metcalf — using the garment to stem the bleeding.

The newly released trial exhibits also include images of the folding Ozark Trail multitool knife prosecutors identified as the murder weapon.

Anthony used the 3.5-inch serrated blade to stab Metcalf after the teen and his brother confronted him for sitting in their team’s tent at Memorial High School in Frisco in April of last year.

Metcalf’s heart was pierced, and he was unconscious by the time authorities reached him.

Anthony was convicted of first-degree murder Tuesday and sentenced to 35 years in prison.