UFC president Dana White has revealed that rapper 50 Cent was responsible for Conor McGregor fighting Floyd Mayweather in a huge crossover bout.
MMA star McGregor took on the legendary fighter in the boxing ring in August 2017, with Mayweather winning the money-spinning showdown by 10th-round stoppage.
White and Mayweather have confirmed they are working together as the undefeated icon plots a return to action in late 2020 - although it is not clear whether it will be a boxing match or a crossover.
Now White has revealed that Mayweather and McGregor's fight came about because of a chance meeting with 50 Cent - a long-time friend of the boxing great.
"I felt the demand for McGregor vs Mayweather, felt it, I knew it would be big, so we started talking," White told ESPN.
“I bumped into 50 Cent in New York, and he said, ‘Floyd wants to fight your boy.’ I said, ‘My boy who?’
“He's like, ‘The Irish kid.’ And I'm like, ‘He'll kill him,’ because I'm thinking MMA.
“He said, ‘We'll box him.’ I said, ‘You guys are crazy.’
“He said, ‘He's serious. I'll call him right now.’
“And then that's how it all really got started. And then everywhere I went, it was all anybody asked me about.”
“Then once I started to really feel it, that's when I started to take it serious, and I made an offer.”
Mayweather officially retired after that victory over McGregor, but returned at the end of 2018 for an exhibition fight against Japanese kick boxer Tenshin Nasukawa in Tokyo.
But in November he announced he would be coming out of retirement again to work with White.
The UFC boss said: "We both started talking. The easiest way to explain it to you is Floyd and I both feel that we add value to each other, and we're going to figure something out.
“Some things have to play out, and then I'm going to start talking to [Mayweather's advisor Al] Haymon maybe this summer and then I'll have something for Floyd in the fall.
“We can do some crossover stuff here, or we can do something in boxing."