mainly because alexander is young and athletic and when he was a prospect he was seen as a potential "next floyd" because of his boxing skill and athleticism(see: broner)
problem is we haven't seen any of that since bradley destroyed him. still don't fully understand what happened to dude
floyds hands are probably still faster but at least alexander has comparable handspeed and probably faster footwork at this stage in their careers
so he might be able to move around and pick his shots enough to force floyd to become an aggressor and make the fight more interesting/entertaining
problem is dude hasn't really brought his pop up to 147 with him and floyd could fight at 154 full time at this point so i'm not sure he'll be able to get any respect
if he tries to stay inside with floyd and outbox him on the inside to prove a point i could see dude getting knocked out before the 8th round

~~~~~~