TOKYO (AP) -- Just when Tokyo was getting a boost in its bid to host the 2020 Olympics, a scandal surfaced within the Japanese sporting culture and threatened to undermine the nation's hosting hopes.
Tokyo bid officials were thrilled last month when a poll showed that public support for the bid had risen to 73 percent, given that low public support had derailed the 2016 bid.
But on the same day the new figures came out, the Japan Judo Federation revealed that the head coach of the women's Olympic team, Ryuji Sonoda, had used violence against athletes at a training camp before the London Olympics.
For Tokyo 2020 organizers, the timing couldn't have been worse -- an IOC evaluation committee will visit Tokyo in March. One of the main themes of Tokyo's bid is "athletes first."
The Judo federation revealed 15 female judoka sent a letter to the Japanese Olympic Committee at the end of last year complaining they had been subjected to harassment and physical violence by Sonoda at a pre-Olympic training camp. The federation, which knew about the problem since September when some of the women first raised the issue, even renewed Sonoda's contract.
Sonoda tried to justify his behavior by saying he was under tremendous pressure to produce gold-medal winners in London, and later resigned. He said he didn't think slapping was considered violence and that he was trained in the same way.
Sports minister Hakubun Shimomura has described the situation as the most serious crisis in Japan's sports history.
"The sports community must make concerted efforts to go back to the fundamental principle that violence should be eradicated from sports instruction," Shimomura said.
Days after Sonoda stepped down, two-time Olympic judo champion Masato Uchishiba was sentenced to five years in prison for raping a female member of a university judo club in 2011.
Naoki Ogi, a former teacher and popular social critic, attributes the corporal punishment to poor coaching techniques.
"Corporal punishment is an easy solution for instructors who lack leadership and skills, who know they won't be challenged," Ogi wrote on his blog. "It's a dirty trick."
Ogi suggests the JOC and the judo federation coordinated their responses to the scandal.
"They must be colluding," Ogi said, adding that the JOC should have launched its own investigation a long time ago. "There is no doubt this ongoing scandal will affect (Tokyo's) Olympic bid. It's a pity."
The complaints by the 15 women were initially ignored by the judo federation, which has no women on its 26-member executive board, so they decided to take it to the JOC.
"We were deeply hurt both mentally and physically because of violence and harassment taken upon us by former coach Sonoda, in the name of guidance. It went far beyond what it should have," the women said in a joint statement released through their lawyers. "Our dignity as humans was disgraced, which caused some of us to cry, and others to wear out. We participated in matches and training as we were constantly intimidated by the presence of the coach while we were forced to see our teammates suffer."
Sonoda was in London for the Olympics, where Japan won only one gold medal in women's judo. Many in Japan have pointed out that his actions go against the Olympic charter which bans violence.
Judo, literally translated as "gentle way," was invented in Japan and was the first Japanese martial art to gain widespread international recognition, and the first to become an official Olympic sport at the 1964 Tokyo Olympics.
At the time of Sonoda's resignation, the issue had already been in the spotlight following the suicide in December of a Japanese high school student who endured repeated beatings from his basketball coach.
The student told his mother the day before he died that he had been struck 30 to 40 times by his coach. The 47-year-old coach, whose name has not been disclosed, admitted slapping the teen when he made a mistake and said it was intended to "fire him up."
Corporal punishment at school is prohibited under Japan's Fundamental Law of Education. According to the Education Ministry, about 400 corporal punishment cases are reported at public schools every year. In 2001, about one third of the cases resulted in injuries, mostly cuts and bruises to the head or the face. About a quarter of the school corporal punishment cases involve sports teams.
In 2009, a former sumo trainer was sentenced to six years in prison for his role in the fatal beating of a young wrestler during training. Former trainer Junichi Yamamoto ordered three wrestlers, in the name of instruction, to beat 17-year-old wrestler Tokitaizan, hitting him with beer bottles, a baseball bat and hosing him with cold water.