Watch the shocking moment when YouTuber Zuckles hit Halal Ham on KSI's undercard with an illegal move and was deducted points

YOUTUBER “Zuckles” was deducted TWO points for a shocking illegal move on KSI’s undercard.

The Australian – real name Mason Bradford – faced mystery opponent Halal Ham in the Wembley Arena prelim opening bout.

And following three frustrating rounds, Zuckles quite literally threw caution to the wind by unleashing a UFC-style elbow.

It caused chaos in the ring as Ham – real name Hamad Khan – protested alongside his coach.

Zuckles was given a stern two point deduction and was able to see out the third and final round without getting disqualified.

He was beaten on the scorecards but fans were still in shock by his elbow after the result was announced.

One said: “Halal ham ate a spinning elbow to the back of the head that was crazy.”

Another added: “Zuckles hit Halal Ham with a spinning-back-fist in a boxing match.”

In the night’s main event, KSI returns in the toughest test of his career against nightclub tycoon-turned 9-0 boxer Joe Fournier.

Millionaire businessman Fournier, 40, will be the first opponent KSI, 29, has faced with prior professional boxing experience.

And the YouTube star has vowed to leave a statement in the biggest night of his prizefighting career.

He told SunSport: “When I knock out Joe Fournier in spectacular fashion, more people are going to be like, ‘You know what, I think KSI it actually that guy. Maybe it’s not worth fighting him, because I don’t wanna be a meme.'”

In the co-headliner, KSI’s brother Deji, 26, faces rapper Swarmz, 26.