CM Punk has stated interest in fighting in the UFC, and then proved that he is horrible at MMA, when he tried it. So what?! All he is now, is a quazi-famous former WWE personality, who can't fight. Why is he any better of an opponent for Floyd Mayweather, than any other famous guy? Why not have Floyd fight Vin Deisel or Jason Statham for his Octagon debut? Or bring Manny Pacquiao over to fight MMA. Maybe he can fight Mario Lopez. My point is, CM Punk is nothing in MMA. It would be just as easy to sell a fight against Owen Wilson for Floyd. Floyd is just going to knock them out anyway, then set up a McGregor fight... So who can the UFC get to fight Floyd in his Octagon debut, some old guy who still calls himself Punk??