Revenge was the word on the lips of the Hong Kong players after they paid the price for an untidy performance in their 14-7 loss to Japan at a partisan Kai Tak Stadium on Saturday. Unless China inflict a fairly heavy beating on Japan early on day three of the Cathay/HSBC Hong Kong Sevens, these two teams are poised for a speedy rematch in Sunday afternoon’s Melrose Claymores final. And the prospec