The fight isn’t until Saturday evening, but WBA Super Lightweight champion Amir Khan and challenger  Paulie Malignaggi wasted no time throwing down well before their showdown at the WaMu Theatre in New York City.  Both fighters made weight for tomorrow’s main event, only for emotions to take over, as the scene erupted into a mini-riot, forcing security and the event’s handlers to clear out the room. Malignaggi checked in at 139 lbs., while Khan making his stateside debut  was slightly heavier at 139½ lbs. for their scheduled 12 round world title fight on Saturday at  Madison Square Garden, New York, USA.