Other source:
As promised, Hercule begins a match with the junior world champion, which happens to be Trunks. Trunks thinks that Hercule is as strong as he says he is, so he is expecting a real bout. Hercule, in an attempt to trick Trunks, instructs the boy to give him the lightest punch he can. Unfortunately for Hercule, Trunks' lightest punch knocks the "champion" out of the ring, though luckily it is played off as if he let Trunks win. While waiting for the adult tournament to begin, Goku and his friends run into two weird-looking strangers, one of whom says he looks forward to fighting Goku.
