Well first of Hatton forced Collazo to fight secondly Hatton wasn't putting effective pressure on Collazo. His punches were sloppy and they had no snap on them he wern't picking his spots, plus Hatton wasn't able to bully Collazo. Berto is bigger and stronger than Hatton at Welterweight and has the power to make Collazo more cautious and lower his activity level, plus he has the power to stop Collazo unlike Hatton, plus he has the size to bully Collazo on the inside.
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