Things turned ugly in Los Angeles on Friday night following the KSI v Logan Paul weigh-in.Logan Paul’s trainer, two-time heavyweight world champion Shannon Briggs, clashed with three members of KSI’s corner - including his rival trainer Viddal Riley.Briggs, famous for his ‘Let’s Go Champ!’ catchphrase, also clashed with Riley’s manager Amer Abdullah and two-weight world champion Badou Jack, who Abdullah also manages, per The Sun.KSI and Logan Paul, who boast 40 million subscribers between them on YouTube alone, were both inside the cruiserweight limit ahead of Saturday night’s six-round professional fight at the Staples Center.KSI, real name Olajide Olayinka Williams “JJ” Olatunji, weighed in at 193lbs. Logan Paul was heavier but more toned at 199lbs (or 14st 2lbs).

It all kicked off shortly after the weigh-in with Briggs and Riley both appearing to thrown punches, per Sky Sports, before being separated.

Watch the clip here…

Briggs was then filmed involved in a separate altercation with Badou Jack’s manager…

However, it was another incident - filmed by FightHype.com - which has prompted KSI to call for the commission to ban Briggs from the Logan Paul fight.

“So why is @TheCannonBriggs (Briggs’ Twitter handle) punching civilians now?” KSI tweeted. “The commission should have you removed from the fight tomorrow.”

The footage shows the ex-heavyweight champ, 47, hitting the man - believed to be a member of Badou Jack’s team - in the face.

Riley also tweeted the footage, adding: “So Shannon thinks it’s okay to swing at civilians now too.”

KSI had earlier told reporters that Briggs is little more than a “hype man”.

“Logan should have beaten me in the first fight but he blew his last opportunity,” the Watford man said.

“My team is stacked and he just has a hype man in Shannon Briggs.

“He knows he is finished, he knows nothing about boxing. He does not understand the levels.”