Mayweather Sr wasn't an ATG so it's really no scenario that's plausible in which he'd have ever beaten Leonard. Whereas with say, Tyson and Holyfield for instance, we can at least imagine some plausible scenarios in which he may have beaten Holyfield.
"I fractured my hand in the fight against McKnight in the 8th round," Mayweather said solemnly. Floyd had won a unanimous decision over Art McKnight just two weeks prior facing the young Leonard. Although Mayweather's hand had begun to heal, fifteen days wasn't enough time for his painful fracture to mend satisfactorily. "I told my manager that I didn't want to do it. He told me not to worry (because) a doctor would be there to give me a shot so I could compete... Well, guess what, he never showed," said a regretful Mayweather. Footage of the fight is consistent with Mayweather's story. He used his right hand sparingly in the early rounds and couldn't throw it with conviction after the fifth - https://www.fightsaga.com/news/item...-Sugar-Ray-You-Didn-t-Beat-Me-Fair-and-Square If all this is true, he had no business getting in the ring at all only 2 weeks after the injury. It seems to me that he was coerced into accepting the fight. And the part where he was told not to worry because a doctor would be there to give him a shot. LOL. What was that supposed to be? Local anesthetic to make it numb? So he could injure it further. Insane.