Conor McGregor's Suit Trash Talks Floyd Mayweather at Fiery Pre-Fight Event

When the dust has settled, the money has been counted, the fists have stopped flying and the insults have died to a hubbub, perhaps the most conventional part of the fight between Conor McGregor and Floyd Mayweather might be the fight itself.

In Los Angeles on Tuesday at the opening leg of the 'World Tour,' McGregor did his best impression of Nigel Tufnel, Christopher Guest's goofy rocker from This Is Spinal Tap, turning the dial on the amplifier that is his mouth up to 11.

"He's in a f****** tracksuit, he can't even afford a suit anymore," McGregor said, referring to his American opponent, who he will fight on August 26.

"He is f*****. His little legs, his little core, his little head. I'm gonna knock him out inside four rounds, mark my words."

"The Rolls [Royce] is a 2012 outside," he added, likely in reference to both men's love of luxury cars.

McGregor's comments may be a reference to Mayweather's alleged troubles with the United States tax authorities. A Law360 report published last Friday claimed the 40-year-old requires the money from August 26 to pay off taxes still owed to the IRS from 2015—disputed by Mayweather on Instagram on Tuesday.

But Mayweather got his digs in, too. "You line 'em up and I knock 'em down like bowling pins. On August 26th, I'm gonna knock this b**** out too," he said.

He also taunted McGregor over his only blemish in UFC, a submission defeat to Nate Diaz in March 2016. "We know 'Mr Tap Out' likes to quit and you will wave that white flag," Mayweather jabbed.

McGregor—whose microphone was cut off at one point as he tried to respond to Mayweather—occasionally obliterated the line between trash-talk and abuse. "Dance for me, boy!" McGregor said in what sounded uncomfortably like a racist slur. "Dance for me, son!"

Floyd Mayweather Sr, Mayweather's father and former manager, told TMZ after the press conference that the Irishman's words weren't racist.

"Racist? I don't know what that got to do with race," Mayweather Sr. said. "This is a boxing match. I don't know what that got to do with no racists."

A close-up of the Dublin fighter's suit revealed "f*** you" written along the immaculate pinstripes.

Mayweather and McGregor have three more promotional events to complete this week, including visits to Toronto on Wednesday and London on Friday. By the time they reach Britain, let alone the fight in six weeks' time, even 11 might not enough extra notches on Tufnel's amplifier.