Caleb Plant produced a knockout of the year contender against Anthony Dirrell before being tackled by the referee for his celebration.
Plant, whose only loss in his professional boxing career came against Canelo Alvarez, is back in the hunt for the world title after losing his IBF super middleweight belt.
Knocking out Anthony Dirrell, who was talking A LOT in the prep, will do Plant no harm as he seeks to rise back to the top of the boxing world.
What a knockout it was too, with Plant showing world-class timing, speed and power to catch Dirrell with a left hook and let him see stars on the canvas.