as i've said on another thread and prior to the fight. We all knew margo is tough and has a solid chin but people never expected it was more than solid than they thought it was.. during the early goings in the fight i assume cotto's team knows what they're doing is good at that point and perhaps were hoping that margo would crack later on but it was evident after the mid rounds that it was ineffective. Cotto obviously would go the head because it was more open than the body especially to counters. I say in this fight, margo's chin was overlooked.
I agree, Cotto's backpedaling didn't allow him to work the body like he did Sosa or Gomez. It would have been interesting to see the result if Cotto stood his ground in the early rounds and blast Marg to the body.