It is obvious it is intentional. If you look at his initial steps, those were small steps, then he extends his foot longer than normal.
JMM was able to pin point his foot and his punches at the same time. That is BADSS:yikes He truly does own Pac!
in boxing, stepping on opponent's foot is an old trick to make your opponent unbalanced and lose his concentration. and it's illegal. this **** happens though when a righty fights a lefty, but looking at jmm's action, it seems to me that he purposedly did that trick.
That's skill baby!!! I believe it up to Toney Weeks to bring it to Marquez attention if he felt it was dirty. Pacquiao should of tried to do the same, but he never complained either.