Conor McGregor pried eyes wide open when he earned an estimated 0 million for his professional boxing debut opposite Floyd Mayweather, Jr. But the Irishman said in a recent interview that he will make nearly as much for his return to the Octagon this week. "I'm estimating around million," McGregor told ESPN's Ariel Helwani when asked what he anticipated his payday would be for fighting Donald "Cowboy" Cerrone in the UFC 246 main event in Las Vegas. What avenues of revenue that includes, McGregor didn't detail, but with numerous business endeavors outside of the Octagon, he has many revenue streams to draw from.