One of the men seated at the bar turns down the drink, and McGregor responds by tauntingly pumping his fist in the air. When the same man looks away, McGregor strikes him in the head with a left jab.
Two other patrons immediately pull McGregor out of the frame as the bartender stands in shock with her hands covering her face.
According to ESPN, this is believed to be the same incident that the Irish Mirror covered back in April. No charges were reportedly filed against McGregor, and authorities haven't released any new updates on the investigation.
It's just the latest example of McGregor's history of violence outside of the Octagon.
Earlier this year, he was arrested in Miami and charged with strong-armed robbery and criminal mischief after smashing a fan's cell phone. The charges were later dropped and the matter was settled in a civil suit.
Then there's McGregor's infamous—or should we say, "notorious"—bus incident, in which he launched a dolly through a bus window at a UFC media event in 2018, injuring two fighters in the process.
McGregor cut a deal to avoid jail time, but was slapped with court-ordered community service and anger management classes. In light of this new video, he might consider taking a few more.
As for his UFC career, McGregor hasn't fought since he was handily submitted by Khabib Nurmagomedov at UFC 229 in October of last year.
Rival Nate Diaz, whom McGregor is 1-1 against in the Octagon, is slated to fight Anthony Pettis in the co-main event at UFC 241 this Saturday, August 17.
The card also features heavyweight champion Daniel Cormier vs. former champ Stipe Miocic in the main event, Yoel Romero vs. Paulo Costa, Gabriel Benitez vs. Sodiq Yusuff, and Derek Brunson vs. Ian Heinisch.