Sorry if my post offended you.
But not giving your opponent a chance to be introduced and pushing him once the final whistle has been blown because you lost the match is not exactly good sportsman ship.
I have watched a lot of Wrestlers over the years and I have seen a lot of them loose, but few of them have problems controling their emotions even though they're disappointed. I would be upset too if they weren't angry at loosing, but there is a time and a place for everything.
I just feel that every athlete should treat his opponent with respect on and off the mat and that isn't always the case. You treat people the way you want them to treat you.