Brutal kickboxing knockout sends fighter to sleep

Warren Thompson barely had time to blink before he was knocked out by Zinedine Hameur-Lain who landed a crushing right hand right on the button.

The two fighters were only 12 seconds into their fight at the GLORY 32 Virginia Light-Heavyweight Tournament, when Hameur-Lain sent his opponent to sleep.

It was clear as day that Thompson was out before he hit the floor as he just stopped and face planted right into the mat.

The knockout took everyone by surprise and the commentator can be heard shouting "Mamma mia!" as the fight is called off by the referee.