KAMARU USMAN & ALI ABDELAZIZ CONFRONT COLBY COVINGTON Buffet Fight Video

Kamaru Usman and Ali Abdelaziz ran up on Colby Covington before the manager threw a punch during their casino buffet altercation … new video obtained by TMZ Sports shows.

We broke the story … Usman and Covington — who HATE each other’s guts — faced off at the Palms Casino Resort only hours after Kamaru beat Tyron Woodley at UFC 235 … winning the welterweight title.

In the original video published by TMZ Sports in March, it was unclear — outside of their disdain for each other — exactly what sparked the fight.

However, the new video clearly shows Ali Abdelaziz confronting Covington — who’s in line at the buffet — as Usman tries to hold Ali back.

It’s clear Colby — who almost immediately retreats and takes out his phone to record — doesn’t want to fight.

At one point, Abdelaziz charges and appears to knock Colby’s phone to the ground … before later throwing and seemingly landing a punch to Covington’s chest.

The heated altercation lasts about 2 minutes … but Kamaru never puts hands on Colby.

Covington previously claimed Abdelaziz threatened to shoot him during the altercation … but if that happened, it’s not evident in either video.

The bad blood between Colby and Kamaru goes wayyy back — several years — with the 2 fighters getting into it almost every time they’re in the same room.

As for a fight in the Octagon … Usman recently told us he was already in talks to make a Colby fight with Dana White and the UFC.

TMZ reached out to Abdelaziz … who declined to comment.