Conor McGregor, aka the Notorious, is also slightly notorious for being a bit of a party lad now and again.
The latest sightings of the champ were at Dun Laoghaire Pier yesterday, with snaps of the fighter and his mates posted all over social media.
They were spotted sipping champagne on jet skis and boats around the popular 40ft area.
The only problem?
The coast guard issued a warning that "jet skis and a powerboat were causing havoc and using the yellow safety water markers as a race course'.
Eagle-eyed onlookers were quick to point out that Conor McGregor was in the area at the time.
The coastguard statement on their Facebook page that "two jet skis and two powerboats were spotted acting recklessly. Within minutes of the seafarers seeing the Irish Coast Guard members, they stopped and left the area."