The video of the attack on a student in West Yorkshire, England, is circulating on social networks.

What distinguishes this attack from others is that the victim is actually a champion of combat sports, Telegrafi reports.

Stuart Briggs, 35, admitted attacking pupil Alex Williams, 16, while he was sitting with a friend.

But the attacker didn't even know that the student who attacked him is actually a world champion in Jiu-Jitsu.

Briggs pleaded guilty in court to assault and grievous bodily harm to Williams.

He had even bitten off a piece of the student's ear, to whom he had started shouting and threatening with the words: "I will break his head, I will slaughter him on the street".

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What Briggs didn't know was that the young man was a multiple Brazilian Jiu-Jitsu champion.

The video shows how Briggs approaches the teenager who was sitting with his friend and tries to knock him down.

But Williams immediately takes the defensive position, lifts the man into the air and then slams him to the ground.

As if this was not enough, the attacker does not give up and attacks him again, but Williams fought back this time.

/Telegraph/