Japanese football has generated a steady run of lawsuits and legal disputes over the past decade, spanning a fired national team coach who sued the Japan Football Association for a symbolic one yen, a Mexican coach caught up in a Spanish match-fixing prosecution, a university program hit with criminal complaints and an internal power harassment suit, a Bundesliga midfielder arrested on assault allegations, and a coaching contract fight that ended at the Court of Arbitration for Sport. Each case turned on different law, but together they show how coaching contracts, player conduct, and institutional governance have repeatedly landed in court.
Vahid Halilhodzic’s One-Yen Suit Against the JFA
In April 2018, the Japan Football Association fired head coach Vahid Halilhodzic two months before the World Cup in Russia. JFA president Kozo Tashima said the decision came down to a breakdown in trust and communication with the players, compounded by poor results in friendlies that included a 4-1 loss to South Korea, a draw with Mali, and a defeat to Ukraine.1Mainichi Shimbun. JFA Dismisses Halilhodzic as National Team Head Coach
Halilhodzic disputed that account. He said the firing came without advance discussion, that “the lines of communication were always open,” and that he had clashed with only two players.2Fox Sports. Former Japan Coach Halilhodzic Still Baffled Over Firing3Mainichi Shimbun. Halilhodzic Planning to File Suit Against JFA
On May 24, 2018, his lawyers filed suit in Tokyo District Court against both the JFA and Tashima personally, claiming damage to the coach’s reputation and honor and seeking a symbolic one yen in damages.4The National News. Former Japan Coach Vahid Halilhodzic Sues JFA Over Brutal Dismissal for One Yen3Mainichi Shimbun. Halilhodzic Planning to File Suit Against JFA His legal team called the dismissal wrongful and accused Tashima of violating the JFA’s own governance rules.5Inside World Football. Sacked Halilhodzic to Take Japanese FA to Court in Matter of Honour “We’re doing this for honour, and there’s no price for honour,” his representative said. The JFA replaced him with technical director Akira Nishino, whose contract ran only through the end of the tournament.6The Japan Times. Vahid Halilhodzic Axed at Helm of Japan Soccer Team Two Months Before World Cup Finals
Javier Aguirre and the Spanish Match-Fixing Prosecution
Halilhodzic’s predecessor had already put the JFA in an awkward legal position. Javier Aguirre was hired after the 2014 World Cup on a contract worth roughly $2.45 million per year, but by February 2015 the JFA had fired him after a Spanish anti-corruption prosecutor named him in an investigation into a suspicious 2011 La Liga match between his former club Real Zaragoza and Levante.7ABC News Australia. Japan Coach Aguirre Sacked Amid Match-Fixing Row8The Guardian. Japan Sack Coach Javier Aguirre Over Match-Fixing Investigation
Prosecutors alleged Levante players had been paid to lose the match 2-1 on the final day of the season, sparing Zaragoza from relegation. JFA president Kuniya Daini said the association could not carry the distraction of a possible indictment into World Cup qualifying.8The Guardian. Japan Sack Coach Javier Aguirre Over Match-Fixing Investigation Aguirre denied any involvement.
The case reached trial with 36 players and several club officials facing charges. On December 9, 2019, a Spanish judge acquitted all of the players, including Aguirre, finding “not enough evidence to convict” and ruling there was no proof of payments made to Levante players to lose.9Fox Sports. Judge Rules Players Not Guilty in Match-Fixing Case in Spain Two former Zaragoza executives were convicted of fraud tied to the withdrawal of €1.73 million from club accounts and each received a fifteen-month prison sentence, though first-time offenders in Spain typically have sentences under two years suspended.10ESPN. 41 People Cleared Including Leganes Boss Javier Aguirre
Nihon University Football: Criminal Complaints and a Power Harassment Suit
No single program has produced more legal proceedings than Nihon University’s American football team, which was dismantled in 2023 after two separate scandals.
The 2018 Illegal Tackle
During a 2018 game against Kwansei Gakuin University, Nihon University player Taisuke Miyagawa delivered a late hit on the opposing quarterback from behind well after the play was over. Allegations followed that head coach Masato Uchida and assistant coach Tsutomu Inoue had ordered the hit.11Nippon.com. Nihon University American Football Dirty Tackle Incident The Kanto Collegiate Football Association imposed lifetime bans on Uchida and Inoue and suspended Miyagawa and the team for the 2018 season.12The Japan Times. KCFA Rules Former Nihon University Coaches Ordered Illegal Tackle, Bans for Life
The quarterback’s father filed criminal complaints against the coaches. Prosecutors dropped those complaints in November 2019, citing insufficient evidence that the coaches had colluded with the player to cause injury. Miyagawa’s own indictment was suspended after he reached a settlement with the victim.13Mainichi Shimbun. Prosecutors Drop Charges Against Former Nihon University Coaches
The 2023 Drug Arrests and Power Harassment Lawsuit
In July 2023, marijuana was found in the team’s dormitory. Three players were arrested on drug charges between August and November 2023, and internal reports suggested at least eleven additional members had used cannabis.14Mainichi Shimbun. Nihon University Plans to Abolish American Football Club A third-party investigation found drug use had been “rampant” in the team and that staff knew before the first arrest but downplayed the problem.15The Japan Times. Nihon University Vice President Sues Chairperson Over Power Harassment
The scandal split the university’s leadership. Vice President Yasuhiro Sawada, who oversaw competitive sports, had waited twelve days before reporting the dormitory discovery to police, a delay the third-party committee called a “deviation from common sense.”16Mainichi Shimbun. Nihon University Third-Party Committee Report on Drug Scandal On November 27, 2023, Sawada sued board chairperson Mariko Hayashi in Tokyo District Court, seeking ¥10 million (about $67,000) for power harassment. He alleged Hayashi had barred him from university meetings without explanation, falsely told him he was under police investigation, and pressured him to sign a resignation letter with a blank date.17Asahi Shimbun. Nihon University Vice President Sues Board Chairperson for Power Harassment
Days later, the board proposed that Sawada and university president Takeo Sakai resign while Hayashi took a 50 percent pay cut for six months.16Mainichi Shimbun. Nihon University Third-Party Committee Report on Drug Scandal Sawada and Sakai agreed to step down. Hayashi refused, saying she intended to “follow through with reforms.”18The Japan Times. Hayashi Vows Nihon University Reforms On November 28, 2023, the university decided to disband the American football team.19The Japan Times. Nihon University to Disband American Football Team
Urawa Red Diamonds’ Coaching Contract Dispute at CAS
In 2024, J1 League club Urawa Red Diamonds hired Norwegian coach Per-Mathias Høgmo under a contract running through December 31, 2024, with an optional additional year contingent on the team finishing 10th or higher by the end of October. On August 26, 2024, the club unilaterally terminated the contract.20Court of Arbitration for Sport. CAS 2025/A/11294 Urawa Red Diamonds v. Per-Mathias Høgmo
Høgmo took the matter to FIFA’s Players’ Status Committee, which ruled on March 7, 2025, that the termination was “without just cause” and ordered Urawa to pay €183,274.50 plus interest. Urawa appealed to the Court of Arbitration for Sport. In CAS 2025/A/11294, the sole arbitrator upheld the finding that the termination lacked just cause and held that the contractual compensation clause was reasonable and proportionate. The arbitrator adjusted the award by excluding a January 2025 salary payment the FIFA panel had included, since the contract’s term ended on December 31, 2024, and found that the optional 2025 year had not been triggered.20Court of Arbitration for Sport. CAS 2025/A/11294 Urawa Red Diamonds v. Per-Mathias Høgmo
Kaishu Sano’s Arrest and Non-Indictment
The most recent criminal matter involves Kaishu Sano, a defensive midfielder for Bundesliga club Mainz. On July 14, 2024, Sano and two acquaintances in their 20s were arrested in Tokyo after a woman reported an alleged gang sexual assault at a hotel.21Asahi Shimbun. Kaishu Sano and Two Others Not Indicted Sano was detained for more than two weeks before being released on July 29, 2024.22Times of India. Kaishu Sano Controversy Returns as Japan Fans Question 2026 FIFA World Cup Place
His legal team reached a settlement with the victim described as involving substantial private compensation. On August 8, 2024, the Tokyo District Public Prosecutors Office announced it would not indict Sano or his two co-accused.21Asahi Shimbun. Kaishu Sano and Two Others Not Indicted In a statement, Sano said: “I offer my sincere apology to the victim for my actions that caused great trouble. I take the consequences of my action seriously and will strive to restore trust.”23The Score. Kaishu Sano Released After Arrest in Japan
Sano was named to Japan’s squad for the 2026 FIFA World Cup. The JFA categorized the incident as a “personal mistake” and declined to impose a long-term ban or expulsion, a decision that drew significant public criticism.24South China Morning Post. FIFA World Cup: Two Players Accused of Sexual Assault Get Contrasting Treatments