UFC star Derrick Lewis has revealed CCTV footage of him knocking out a boxer who allegedly talked trash to him.
Lewis, who is one of the hardest hitting heavyweights in the UFC, reportedly took on a boxer at his gym who claimed that he could knock Lewis out – and it didn't turn out well for the trash talker.
The footage, which Lewis tweeted, shows the the 34-year-old fighter laying into his opponent with a barrage of blows in a boxing ring before the boxer eventually goes down.
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