War, check out the game thread on the world cup forum. but i will reiterate what i too my self had learned today on the site, "thank you SW.net", and so did javier agguire, franco and an espn sports caster.
the man on the line was in the position of the goal keeper, and since the goal keeper came out off his line he played the mexican player offside. heard it on skysports aswell.
in ah nut shell, the defender on the line assumed the position of the goal keeper, and viseversa, the goal keeper coming off his line assumed the position of ah defender. hope it helped tuh shine some light on the ting. positive.