This fight is a total joke... PT Barnum, were he alive today, would be proud.
McGregor knows he has no chance. Mayweather knows McGregor has no chance. Anybody who knows anything about boxing knows McGregor has no chance. Yet both fighters are going to get $100 million
... which is what this is all about.
The only question in my mind is how much of a sadist is Mayweather. If he wanted to he could spend 12 rounds toying with McGregor much like a cat will keep a mouse alive so it can keep playing with it. Just for fun, he could turn McGregor's face into a bloody, swollen mess without hurting him enough for a TKO.
Call me cynical, but I actually think McGregor has made a deal with Mayweather for that not to happen.
Alternately... and even more cynically... I can see this fight being fixed so McGregor wins with a "lucky punch" so they can have a rematch and pocket another cool $100mil each.
This is just a money grab by both fighters... and who can blame them? In either of their shoes I'd do the same thing.