Shane might give away one or two rounds, but he's entirely too dynamic in terms of speed, power and boxing ability for Mancini, and he could take whatever Ray dishes out ok.....Mosely turns it up on Mancini by the 8th round and decks him twice after subjecting his man to a major onslaught of leather. A tko in 9 would be the probable result for Mosely over Mancini.
Shane's not knocking out Ray.Probably would decision him in a surprisingly hard fought fight in 12. 15 is another animal that might find Shane in some trouble.
He could definately bust him up for the stoppage. Just how many ko's are there where a guy reaches a 10 count anyway? Mancini could also have this thing waved off by the ref when he's getting shellacked after getting wobbled.
Mancini gets underrated. He would outwork Shane in a excellent fight that may see Mancini down but not out. if this goes for 15... Mancini rallies from behind to win.