This is the holy grail. The original game only includes legends like Ali, Frazier, and Tyson alongside 2006 staples. The Modern Contender patch swaps character models and name strings to inject current boxers.
Unlike console versions, the PSP port lacks deep create-a-player tools, but you can still modify: fight+night+round+3+psp+mod
: You must provide your own legally obtained Fight Night Round 3 PSP ISO. This is the holy grail