John McCarthy is one of the spiritual founders of the UFC, working for the company as a referee pretty much from the start. As one of the most respected men in the game, he obviously knows some people in high places, and one of them is UFC co-owner Lorenzo Fertitta.
"I talked to Lorenzo Fertitta at UFC 197. Lorenzo said 'I never thought that when a fighter was guaranteed 10 million dollars, I would have a problem.'"
It would appear that this is the first public admission that McGregor is actually making 10 million dollars a fight.
McGregor, of course, was scheduled to headline UFC 200 in a rematch with Nate Diaz until he decided that he didn't want to handle some promotional duties in the states. A standoff between fighter and organization followed, and Conor was lifted from the card. The main event is now scheduled to be a rematch between Daniel Cormier and Jon Jones.
McCarthy also shared a little bit of insight about Fertitta from when he bought the company:
"Back in 2001 when Fertitta bought the UFC off Bob Meyrowitz, myself and Lorenzo were standing in the Mark Etess Arena which is in the Trump Taj Mahal hotel in Atlantic City and he told me at the time that he wanted to be the promoter to pay fighters one million to fight."
McGregor earned the first one million dollar disclosed salary for his UFC 196 bout with Diaz. He was submitted in the second round of that bout.