Screw weight. Just let 'em both have a non-training camp where they drink as much ale/cerveza as they want...and then let em fight.
Surprisingly from what I saw in the Alfaro Vs Morales fight I would think Morales could deffinitely give a L to Hatton @ 140. I dont think Ricky has the desire anymore plus his weight cant help him out either.
Hatton even with his hefty shell still has more than enough power to drop a completely shot Erik Morales at 140.
Morales wins this fight, which is promoted as a side show to the world championship hot dog eating contest!