Heavyweight boxer, Anthony Joshua might have some lessons to learn from this video as a man was left staggering after being hit by a single punch.
A video footage trending online shows how a man was knocked out with a single punch while trying to defend a lady who was fighting with another guy.
The man tried to attack and beat the young man who was fighting with a lady in public. Onlookers tried to stop the fight between the young man and the lady as they held each other before the man decided to step in and fight for her.
The young man gave him a single punch which threw the man off balance as he collapsed.
Watch the video below: