Jake Paul shoved Mike Perry which saw security separate the pair on stage.
The pair stepped on the scales for the final time as they prepare to do battle in the squared circle at the Amalie Arena, Florida tomorrow night.
Both men made the 200lbs catchweight and were brought together at the front of the stage.
But tensions threatened to escalate as Paul and Perry traded verbal barbs during their final face-off.
Paul made a threat to close the show early telling Perry: “One round, one round.
“You will be eating the ring tomorrow night. You are going down face first.”
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The pair began to get heated before Paul shoved Perry and launched him backwards which incensed the former MMA fighter.
Security steamed in and quickly separated the two fighters with Perry dragged backwards.
But it wasn’t enough to prevent the two teams from becoming embroiled in a brawl with chaos on stage.
There was a host of shoving and shouting as the two entourages attempted to close the gap to each other.
But luckily tensions simmered down as the two were ushered off stage ahead of tomorrow night’s action.
Paul and Perry had already aimed violent threats towards each other in the fight week build-up.
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The ‘Problem Child’ had even vowed to secure the KO and next move on to a showdown with UFC superstar Conor McGregor.
“Conor McGregor can say what he wants, but he won’t fight me either,” he said.
“So once I knock out Mike Perry, Conor McGregor, let’s run it… but you won’t do it because you know what’s gonna happen.
“You know what I did to Nate Diaz, who you went toe-to-toe with.
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“So Conor McGregor, get in the gym and start winning fights and then maybe we can have a conversation.”
It will actually be heavyweight legend Mike Tyson next for Paul if he beats Perry, with the contest scheduled in for November 15.