The weight loss is never an issue with hatton. When he faught collazo he was 158lbs in the ring. When he faught tszyu and many other 140lb fights he is 156lb in the ring. Physically he hasn't gotten muscularly much bigger on that basis, obviously, i'm only going off what i can tell, but hatton has never had an issue making 140, and i don't see why that'd change, he's only just turned 28. He's basically in his physical prime.