Conor McGregor has reportedly agreed to take on Irish rival Luke Keeler in a boxing match after a furious row over his alleged assault on an elderly man in a Dublin pub.
Footage emerged last week from an incident in April that showed McGregor striking a man in a row over his injecting a drink of his whiskey.
WBO European middleweight champion Keeler slammed the UFC star on Twitter and declared: "I'd be happy to put him in his place if he had the balls to step in a ring again."
He has now revealed he received an angry phone call from McGregor, leading him to verbally agree to accept his offer of a fight.
Keeler told IrishBoxing.com: “I don't want to get into it too much, but I know he's happy about the call out. He is not happy.
“The fight community in Ireland is small enough and Crumlin is too far from Ballyfermot – and I heard he was happy with the timing of it.
“He rang us and we had a few words. I told him the fight was there to be made and he was all for it. He agreed to fight over the phone. ”
McGregor's only appearance in a boxing ring came as he was beaten by Floyd Mayweather in their money-spinning crossover bout in 2017.
But Keeler claims his management company, MTK Global, is in discussions over making the all-Irish grudge match happen as he questions whether McGregor is "just all talk".
He said: “I agree it could be just all talk.
“Whether he has the balls or not to get in the ring again, never mind, we will have to see.
“He may have been just trying to get up or talking in anger, but he got to the stage where I felt comfortable enough passing on my management team.
"Like I said, I just want to get into that much more, but I have handed it over to MTK and I'm talking to Conor."
Keeler, who is 17-2-1 in his professional career, took another shot at McGregor on Twitter claiming he had no class as he urged him to "get Irish people's respect back" by going through the fight.
He wrote: "He has agreed to fight after a shouting match on the phone but doubtful he will. It would be the quickest way for him to get the Irish people back but respect and class is something he has none of and something money cannot buy "