Ortiz's problem in my opinion is killer instinct. He doesnt finish people off when he has em in trouble, and tends to fade as the fight goes on. If Berto is cautious in the first half, he should take over around mid rounds. Ortiz can box a bit, but has bad habits like bouncing back and forth, he could get timed easy by a good counter puncher.I think Berto by late rounds stoppage.
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