During a Google Hangout last September, UFC president Dana White was asked what the most any UFC fighter had ever made for a single bout.
"We paid a guy $5 million for a fight before, [but] we didn't start making money until 2007," said White. "That was six years ago. Boxing's been around for a 100 years, they've been doing big events since way back when. Pretty amazing what we have done in short amount of time. I don't think a lot of people look at that way and break it down for what it really is."
White did not reveal who the fighter was, but there was widespread agreement that Georges St-Pierre, Anderson Silva, and Brock Lesnar were the most likely candidates
UFC heavyweight Brendan Schaub appeared recently on The Joe Rogan Experience, and when the discussion turned to fighter compensation, Rogan revealed that the Five Million Dollar Man is GSP.
"When you look at pay, there's a pay that's listed as far as the purse you get after the fight," said Rogan. "That doesn't take into account a lot of factors. There's a lot of things they want to remain private. You're not just getting paid that amount. Some people are. But when a guy is selling tickets, a big name fighter, there's a lot of factors in there. Incentives, pieces of Pay Per View. Georges St-Pierre was making $5 million a fight.
"He's making a lot of f---ing money. He's got sponsors, Gatorade, all this other stuff. Other revenue coming in. Georges St-Pierre made a f---load of money fighting."
(17:00 min mark)