The incident resulted in two felonies filed against McGregor, who ultimately pleaded guilty to a disorderly conduct count last month that kept him out of jail.
The details of why the incident took place have never been made public, but it set-in-motion a insane couple days in Brooklyn that ended up with McGregor spending a night in jail.
"For the fight with McGregor Khabib Nurmagomedov will receive a record sum for a Russian fighter competing in mixed martial arts", he said. McGregor didn't immediately react to the bout announcement on social media.
McGregor never defended either belt.
He took a year out of the sport as he turned to professional boxing, losing to Floyd Mayweather Jnr last summer.
The UFC dramatically announced the matchup on Friday with a promotional video to close a news conference promoting its slate of fight cards for the rest of 2018. However, considering that fight takes place on October 6, a one or two-month turnaround to fight arguably the greatest fighter to ever grace an Octagon might be too much of an ask for the victor.More news: Violent Weekend Leaves at Least Five Dead, Dozens Injured Across Chicago
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McGregor will enter the octagon on October 6 in Las Vegas to face undefeated lightweight champion Khabib Nurmagomedov.
"It's time to go, so it's time to go", Diaz said. "I don't know why nobody told you guys that".
While appearing on Submission Radio, Georges St. Pierre discussed the upcoming Khabib & McGregor fight and indicated that he would be interested in challenging the victor of that bout but doesn't believe UFC will allow it. It likely won't match 2017's biggest fight in terms of revenue, but it's a far better fight, if you ask me.
If the title wasn't on the line and it was just a huge fight, St-Pierre says he would still consider facing Nurmagomedov or McGregor because it would definitely add a huge win to his resume as he continues to build his legacy as one of the greatest fighters of all time.
"This is a championship fight right here ..."
Nurmagomedov, whose rise to prominence has been more of a slow burner in comparison to McGregor, was touted as an opponent when his foe first became lightweight champion.