rantcatrat,

sure i think mexican fighters can lose. i'm not that much of a homer and definitely not blind. and sure, i think marquez can beat katsidis but i don't think he can beat amir khan. khan is too young and fast and besides, if the fight is in the UK, marquez would need a KO to win and even then he might only get a draw!

here is an example on what mexican fighters i think will lose:

orlando salido will get KO'd by yuriorkis gamboa
rafael marquez will get KO's by juanma lopez
sergio mora losing to shane mosley
ivan hernandez losing by KO to wilfredo vazquez jr.

want more proof?