What would Mayweather's career been like if he had lost that '0' vs Castillo?
This is not about whether Castillo should have got decision more whether Mayweather would have been less cautious in choosing opponents if he wasn't too wary of losing his undefeated record. I'm a huge Mayweather fan but if he lost that '0' vs Castillo would we have seen him take the Margarito fight & pick him apart? Would we have seen Mayweather-Tszyu at LWW? Would we have seen him fight Pac when it really mattered a few years ago? (not saying only Mayweather is to blame for that one) What else would we have seen? Please discuss