Yeah, he has certainly heard over the years all the people calling him a wuss. I am sure he wanted to go out with a fight where he could be aggressive without any fear. So, he let McGregor land more punches than he usually does. McGregor punched himself out, without doing real damage. Then, the rest of the fight Mayweather just picked him apart while McGregor got so tired it looked like he was gasping for air a lot of the time.
See MMA fighters, if you want to box, you'd better cardio train like never before. Twelve rounds is a hell of long time to box.
When I was younger and in a little better shape, I was shooting promo photos for this local fight. So the trainer asks me if I have ever boxed and I'm like no way, so he convinces me to get in the ring with him and spar a round. It was in no way, shape or form a fight, he never hit me just kinda coached me and told me when move, and keep my feet going, and when to throw punches and stuff like that.
Point is, we did that for about,,,, hmmm 5 minutes, and I was as gassed as I've ever been in my athletic life. Like, gonna puke, gassed.. I couldn't have knocked out a mosquito by the end my arms were so dead.
Boxing is insanely hard.