Story By: Lee Bullen, Sub Editor: Joseph Golder, Agency: Asia Wire Report

Video Credit: AsiaWire

This is the moment a pint-sized bruiser knocks out a bullying gym instructor with one punch after the taunting trainer grabbed him by the neck and hit him.

The incident was filmed by CCTV cameras at a gym in an unspecified part of China after the short man accidentally bumped into the gym instructor who responded angrily.

The footage was posted on YouTube where it has been 293,000 times.

Pictures Credit: AsiaWire

In the clip, the burly trainer, who towers above the other man, is seen hitting him around the face after a short verbal exchange.

The instructor continues to argue with the victim, who turns to walk away and appears to want no part of the ongoing row.

However, the burly trainer grabs him by the back of his neck.

The following scene shows the same events from a different camera angle, but with the satisfying plot twist.

After the bald instructor holds the short man’s neck, he appears to pinch it hard and the victim reacts.

He is seen throwing a left hook which immediately floors the stocky trainer.

Netizens had a lot to say about the ‘David and Goliath’ contest. One social media user commented: “That kung fu guy sure knows how to throw a punch all right.”

Another netizen said: “Don’t look down on smaller people. The big guy was arrogant trying to bully the weaker feller and got what he deserved.”