Japan's sumo world has once again been rocked by violence with the sport's governing body announcing Wednesday that rank-and-file wrestler Takanoiwa assaulted a stablemate during the ongoing regional tour.According to the Japan Sumo Association's public relations department head, Takanoiwa, who was a victim of assault last year, struck a lower-ranked attendant of his Chiganoura stable four to five times with an open hand and his fist at a hotel because the junior wrestler had forgotten to bring something.The apprentice did not suffer a major injury but has swelling on his face, according to…READ FULL ARTICLE