KSI almost fought Joe Weller, a former rival, before Joe returned to the ring.
Weller was one of the many spectators at Saturday's weigh-ins to YouTuber's clashes against rapper Swarmz, and professional boxer Luis Pineda.
Joe Weller andKSI exchanged words Friday
Weller took charge of the exchange between the two.
Weller was stopped by security from starting a mass brawl
KSI won the 2018 clash via TKO in the third round.
The social media star nearly started a fight by charging at KSI while his rival did an interview.
After KSI asked Weller: "Why is he... why aren't you standing like this?"
Security quickly intervened to drag Weller, who was clearly excited, from the scene.
KSI stated that the incident occurred because Joe Weller was a b***h and had always hated him.
"I have knocked him out once, and I will knock him out again. Is he here for this reason? "Why did he get accepted?"
KSI - realname Olajide Olatunji – stopped Weller in their grudge fight four years ago at London’s Copperbox Arena.
26-year-old Weller was defeated in the third round of the Battle of the YouTubers.
They appear to have smashed their beef but continued to shoot at each other.
Weller wants revenge for his loss, but he also wants to confront his rival on the streets.
Misfits Boxing was told by he: "A boxing match?" That's absurd. We are beyond that.
"I want a street fight." No rules are what I seek. I don't want anyone helping him.
"I don’t want him to have anyone behind me. I want him and me in a parking lot. Serious.
"He won’t take it, however. He won't take it, though.
Later, Weller told GiveMeSport that the geezer called him out while he was watching.
"I am rent-free in the geezer’s head. You expect it, mate. It's too much for him.
"His next opponent? "I will fight him on the street." F**k this boxing s**t. I will use gloves to protect him.
"I'll do anything, mate. The kid is a tool.