"ALL hell broke loose" when Jake Paul's team got into an argument on Thursday with Tyron Woodley’s mom.
The UFC star confronted the YouTuber before their fight, and there was a row as fighters went head-tohead.
Online footage shows Paul's entourage being approached and shouted at by Woodley's mom.
He appears unaffected when the camera switches to Woodley, who is trying reach the rowing pair.
Another scuffle occurs nearby when a man is thrown to the ground.
Many people try to maintain peace by calling for 'chill’ and'relax.
As it seems that most of the people in the room have been involved, security personnel move in.
Then, a worried voice shouts "Why have I got a knife man?"
The knife claim is still unsubstantiated.
Paul is now facing Woodley after he defeated Ben Askren.
The 39-year-old former champion of the UFC comes in to the fight having suffered four consecutive losses in MMA and never been in a professional boxing match.
He raised his fist in the air during Wednesday's session before getting on the pads.
The victor will be inked with the name of the victor on an 'I Love' tattoo.
The veteran insists that he isn't fighting Paul to punch him, get on the canvas and cash his check.
Paul will face Woodley at 11pm, which means a 4am start for UK fans on Monday morning.
Two young British fighters are on the undercard, looking to make an impact in their US debuts.
Anthony Taylor faces Tommy Fury in an attempt to win his fight against Paul.
As he continues his bounceback after last year's loss to Joe Joyce, Daniel Dubois will be up against Joe Cusumano.
Fury took part in the open training and discussed possible showdowns with Derek Chisora and Dillian Whyte, if Fury wins Sunday's fight.
Free Bets: Get more than PS2,000 in NEW CUSTOMER DEALS
