you obviously didnt get my point.. but anyways... Jaca landed a HEADBUTT not a punch and Marquez got off balanced, if you had watched the replay you can clearly see it.. how can a headbutt be considered a knockdown? Jones using his forearm to put down Calzaghe is a REAL knockdown because he used his hand not his fu*ing head!
It was very clearly a right hook that caught him on top of the head.
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