A video which has gone viral on social media shows the moment a white man got knocked out with a single punch.
He was assaulting an elderly man in a public park and passersby berated him for the action but he was unrepentant.
In the clip, the bully could be seen punching the elderly man who was trying to block with the blows with his hands.
The bully was reprimanded by a man who was watching the incident, but he moved closer to the man in a bid to intimidate him, however, he got more than he bargained for.
The bystander landed a heavy punch on his face and he passed out immediately.
Watch the video below: