I think it would be something like the Mosley/Judah fights. Mayweather could have had either of those fights stopped by piling on but he never did and both of those guys made it to the final bell. I would predict something similar in the Khan fight. That wouldn't really be a credit to Khan, it's just a matter of Mayweather not having any sort of killer instinct. That works for him because he's been so much better then everyone he gets in the ring with.