REALLY? A SLIP?!
You must be a Mayweather stan breh lol It's okay though, he's a great fighter.
Mayweather got hit by a Zab Judah hook, fell in the opposite direction of where he was moving, and used his hand to stay upright.....that's a knockdown at any level of boxing.
And does it matter how the fight ended though?
You said he's never been down and the proof is right in front of your face, and now you're moving the goal post?
This is why I hate talking boxing with die hard stans of fighters instead of the sport in general.
Boxing > Any individual fighter.