Why does Floyd Mayweather fail to stop most of his opponents?

LMFAO you forgot who had the first knockdown in that fight? The knock down where manny dudud in his shorts? Pac was not ass whipping JMM. JMM ALWAYS comes back no matter how many times Pac hits him. FACT!

 

I cannot believe that Floyd & his Flo Mos count the blatant mugging of a defenceless Victor Ortiz as a KO win. Floyd proved his cowardice by cold ****ing Ortiz & proved his feather like punches by failing to KO a defenceless fighter
Do us all a favour RETIRE for GOOD let the MEN fight we're sick of balless cowards like You Mayweather