Do you reckon Floyd would have ended his career with a KO if he'd fought...

[BrometheusBob.]

Floyd wouldn't have knocked out THIS guy in his last fight:
http://boxrec.com/boxer/688167

For those too lazy to click - He has a record of 0-7 with 6 KOBYs (not TKOs) in the 1st round and 1 shutout decision in a 4 rounder.