LAS VEGAS — The carnival finally hit town Tuesday, with Conor McGregor and Floyd Mayweather Jr. putting on a bit of a fashion show before promising to knock each other out in their highly anticipated boxing match.

Mayweather wore a fedora and gold rimmed glasses while McGregor sported a three-piece suit and tie and aviator sunglasses as they made separate appearances before a crowd of several hundred people in front of the arena where they will fight Saturday night.

The two got into an unplanned verbal confrontation as they moved between the outdoor stage and the arena, though it was brief. Bodyguards kept them apart and both fighters are smart enough not to do anything to jeopardize their immense paydays from what could be the richest fight ever.

“It’s work,” Mayweather said when asked if he was having fun. “My job is to be a fighter.”

McGregor, meanwhile, reiterated his vow to knock Mayweather out within two rounds, and claimed the boxer was getting desperate in making comments about his weight and stamina.

“Let him keep praying about weight and fatigue. All he’s doing is praying,” McGregor said. “But he’s praying to the new god of boxing.”