McCallum by late TKO or decision. Great action fight with McCallum's vast advantage in defensive acuity and technique ultimately being the difference as Roldan, after an aggressive start is gradually worn down with clean punches and from being tired out from being made to miss. I think he'd start well, push Mike back a bit, but McCallum was too slick and steady, he'd start to show his class and dominate late. Not unlike Roldan's try against Hagler. He was strong and powerful and a fast starter, but he was all banger, not a lot going on technically and as such, he didn't have the stuff to handle two guys like Hagler or McCallum -- extremely durable, versatile, exceptionally well schooled boxer/punchers.