Anybody who says they believe this are lying to themselves and their fellow Sherdoggers for anti-Conor clout.
You don't remain fresh for 10 rounds against a guy who threw 430 punches at you, while you throw 320 punches yourself, without seriously training. You would literally be a goddamn supernatural freak of cardio nature never before seen in human history to be able to do that. He absolutely has to have trained hard, even if you wanted to argue he didn't need to train as hard as he normally would've knowing he was facing a non-pro boxer in his first ever 12 round fight.
Nor would Floyd ever risk his upcoming coveted 50-0 record on doing something so stupid.
Nonsense.
I would put everything I own on Mayweather being able to walk into his gym just now and go 10 with any one of a number of fighters, all of whom are better than Conor.
This is what Judah had to say about his sparring,
“When he trains, he lines up like 15 to 20 sparring partners at a time. I've known him since we were amateurs. He's always done over and beyond what the job consists of. You can't beat someone who's not going to get tired.”
He could go 10 round with a 30 year old Conor McGregor until he was an proper old man.