During the press tour event in London, Mayweather says he will fight McGregor in the Octagon.
FM: I can conquer any country. They should have come and got me for the UFC, if you wanted a real champion. I run the Octagon. I run the ring. Me! If you say something else I’ll whoop your as in the Octagon.
CMG: When I spark you August 26th I’m gonna make you face me in the rematch in the Octagon. And then we’ll see if you’re all talk or not.
Floyd Mayweather: 'If you say something else, I'll whoop your ass in the octagon' pic.twitter.com/vcSANpnWuM
— Sports Illustrated (@SInow) July 14, 2017