McGregor's remarks had caused many to criticise the Dubliner for what they deemed to be racism after he said: "Dance for me boy" to Mayweather on stage during the second stop of the world promotional tour for their August 26 fight.
"This is a boxing match". It's actually "the fight before the fight", with the two stars trading blows, in the form of profanities, abuses, taunts and so on.
Watch the unmissable action from the press conference live on thesun.ie here. The Irishman, McGregor, perhaps inspired by the Indian PM, took it to another level.
A lot of eyebrows were raised, however, when Conor McGregor yelled into the microphone "Dance for me, boy!" in Los Angeles.
"How's this suit look?" he laughed. It seemed more than that.
In America, calling an African American a "boy" has racial connotations.
Referencing the 40-year-old's history of domestic abuse accusations and promotion of adult establishments, Kavanagh sent a truly bone chilling warning, referring McGregor as a dark animal from the boxer's worst nightmares. Or Hell.do you think the younger Diaz and McGregor could ever be trusted to get that close to one another during a media event? What do you need a schoolbag for? "You can't even read", he said, prompting the crowd to erupt in laughter.
There was a genuine disdain built by anyone McGregor lined up against and most who've faced him still hold a grudge to this day.
MMA fighter Conor McGregor is pretty much known for his highly entertaining and profane interviews, so sports shows have to prepare for the inevitable.
"You owe money", McGregor retorted, referring to Mayweather's tax problems that were reported earlier this month.
After they face off in NY the pair will travel to London for the final stop on their world press tour on Friday.
"It's hurting the sport of boxing", Alvarez said.
After going non-stop for six minutes, McGregor waved off attempts for him to wrap it up - "I'm not getting off this mic!"
Floyd Mayweather has won fifteen world titles and is undefeated in his proffesional boxing career. And it wasn't backstage saying, 'Hey, I'm doing it for the good of the show'.
"He has to realize, I've been here before", Mayweather said.
Not to be outdone, Mayweather took to the mic before draping himself in an Irish flag handed to him from the crowd.