White refutes McGregor/Mayweather rumor
Kevin Iole of Yahoo Sports was able to speak to UFC President Dana White about the report who of course shut it down directly.

Earlier today the UK Sun reported that Conor McGregor and Floyd Mayweather had agreeing to a box match and even agreed to terms, but not yet signed. The news sent the MMA world a buzz with speculation even though most knew the fight was very unlikely especially with the Sun’s reputation.
Kevin Iole of Yahoo Sports was able to speak to UFC President Dana White about the report who of course shut it down directly:
With Conor McGregor seemingly at odds with the UFC and with Floyd Mayweather hinting about ending his retirement, a report that emerged from The Sun, a U.K. tabloid, that Mayweather and McGregor were on the verge of a deal for a fight, was given an ever so slight bit of credibility.
The Sun reported Mayweather would make $144 million while McGregor would get $10.1 million in U.S. dollars.
But UFC president Dana White laughed when asked if the report was true. He said it is completely false.
“It’s not true; it’s just a tabloid story,” White said. “And as far as I knew, Floyd is retired and he’s been on a world-wide vacation and hasn’t even been thinking of fighting.”
