Floyd Mayweather ain't mad or embarrassed about being put on his back by street ball legend Bone Collector -- telling TMZ Sports, "My bank account won't change!"
The boxing legend hit up Avalon in L.A. just 1 night after the $50k Charity Challenge celebrity basketball game ... where Bone crossed him up so hard, Mayweather hit the deck.
"It was a cool move," Mayweather admitted ... "but did they tell you I got MVP? So, we gotta talk about me being MVP!"
He's right, Floyd did get MVP of the game and his team won by 40 points -- but all everyone is talking about is that viral clip with Bone Collector.