CCTV from inside the Marble Arch pub in Dublin from last April appeared to show McGregor strike a punter after he reportedly refused an offer of a free glass of his Proper Twelve brand of Irish whiskey.
Noting that McGregor now also is a father, White said with a chuckle that it was high time for the Dublin native to decide to "stop punching people in the face illegally, and just do it for money".
McGregor can also be seen being brought away from the scene before disappearing from camera shot.
While it is unclear if words were exchanged, after the 31-year-old downed a shot, he unexpectedly punched the man in the face!
After the man rejects the glass both times, McGregor then pours a round for others in the venue. "I haven't gotten paid 16 years professionally", Everybody knows my name in this sport.
"So I know my man's a gangster, but he ain't no West Coast gangster". Absence, and his two epic fights against Conor McGregor, has only seen his stock rise in recent years.
Video footage of the incident, which is alleged to have happened in April, was published online by TMZ yesterday.
Conor McGregor is back in the headlines and once again it is for all of the wrong reasons. "He lose his mind", Nurmagomedov added. "If it's up to everyone who is involved, if they want it, they're going to call me".
"I knew that he had had an altercation at a bar, but I didn't know with who or any of that, I didn't know anything, I just knew it happened".
A police spokesman told ESPN that an investigation is ongoing and no arrests have been made.
Diaz dirtied up the bout immediately and made it a phone-booth fight by staying in the pocket and relentlessly smothering Anthony Pettis with punches, elbows and knees. He was arrested for robbery and criminal mischief, but the charges were eventually dropped, and he settled a civil suit with the victim.