Heel Hooks are dangerous, we all know that and applying on the street is probably the most brutal thing you can do if you train Jiu-Jitsu or any other Grappling Martial art.
It’s not known how this fight started and how did they end up on the ground but this guy literally won’t walk for a long time. He stayed there lying down, holding his legs. It’s obvious that his knee is torn by the heel hook.
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