I don't think Khan has a suspect chin; those shots from maidana didn't knock him out, he just gets (or used to get) hit flush a lot but that's just bad habits.
I really thought Collazo was going to blast him because of that. I don't think Thurman would be a good idea yet...
Would he give Floyd problems with his speed? Floyd's got timing to make that irrelevant. He'd surely last longer (12rds) against Floyd than against Thurman.
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