Saito's stable master, Junichi Yamamoto, admitted to beating the teen and ordering other sumo wrestlers to beat him, due to Saito's "vague attitude" towards the sport. It was also reported that Saito had run away from the stable on a number of occasions. Yamamoto was expelled by the Japan Sumo Association. Yamamoto and three wrestlers from the stable were arrested in February 2008 and have been charged with manslaughter. The incident brought substantial political pressure to the governance of the sport in Japan.