In an interview with The MMAHour, Nelson says the weight cut to 145 lbs is so difficult that he would prefer to see McGregor continue his career at lightweight, which he says is a more natural weight class.
With 145 lbs, I know he can go back down and defend his title, no problem. I just think he doesn’t want to do that cut again. It’s a nasty one and I agree with him. I understand that. I would like to see him go to the 155 lbs division before going all the way up to welterweight but he’ll do whatever he feels like.
On the retirement tweet:
I think it kind of happened because he wanted to really focus on his training for this fight and he felt like going over there and doing all this media stuff was going to take away from his training and I think that’s the reason why he kind of had enough of that. Like he says, he’s done dancing like a monkey and he wants to focus on training. And I understand that…When exactly, I’m not sure but maybe UFC 201 or UFC 202. I would definitely put my money on him coming back and I believe the money is there as well.