The much-anticipated rematch between Muay Thai superstar Rodtang Jitmuangnon and Japanese kickboxing legend Takeru Segawa at ONE Samurai 1 on April 29th in Tokyo is now shrouded in profound uncertainty following a dramatic escalation in the contract dispute between Rodtang and ONE Championship. In a move that has sent shockwaves through the combat sports world, the Singapore-based promotion announced late Tuesday that it has initiated legal proceedings against Rodtang in three jurisdictions: Singapore, Japan, and Thailand. The core of ONE’s legal action centers on what the organization describes as "multiple breaches of contractual obligations," including the provision of misleading information and the dissemination of defamatory statements.
ONE Championship has maintained a stringent stance on contractual integrity, and its statement underscored this commitment, asserting that it "will seek appropriate damages" while refraining from further comment during the ongoing legal process. This aggressive legal maneuver arrives at a particularly critical juncture, as ONE Samurai 1 is slated to serve as the grand opening for the promotion’s ambitious new monthly Japan series, a strategic initiative aimed at capturing a significant share of the lucrative Japanese combat sports market. Furthermore, the bout is widely publicized as the swansong for Takeru, a beloved figure in Japan, making the potential cancellation of the main event a significant blow to the event’s narrative and its commercial prospects.
A Simmering Dispute Boils Over
The contractual conflict between Rodtang and ONE Championship had been a growing undercurrent for weeks. Rodtang himself had publicly declared his contract status, suggesting he was a free agent and open to exploring opportunities with other promotional organizations. This sentiment was subtly echoed during the ONE Samurai 1 press conference in Tokyo last month, where Rodtang characterized the upcoming fight with Takeru as a "one-off" engagement. While acknowledging potential overtures from other entities, he maintained his primary focus was on facing Takeru.
However, reports emerging from sources close to the promotion, as cited by the Bangkok Post, indicated that Rodtang remained under contract with ONE, subject to a 12-month matching period despite the apparent expiration of his prior agreement. This discrepancy in contract interpretation became a central point of contention.
Allegations of Forgery and a Fight for Justice
Rodtang’s response to these reports was forceful and public. He took to social media to allege that his signature had been fraudulently affixed to multiple contract documents. According to his claims, he initially signed a single document in English, a language he does not fully comprehend, with the understanding that it represented his entire contractual commitment. He later discovered, he asserted, that his name appeared on over 30 pages of documentation. Rodtang further alleged that his legal counsel had confronted an individual involved in the contract process, who purportedly admitted to signing some of the additional documents himself.
In a statement that aimed to clarify his motivations, Rodtang emphasized that his actions were not intended to provoke conflict for its own sake. "I don’t want to quarrel or have problems with anyone," he wrote, "But when I’ve been treated like this, I just want to fight for what is right." This declaration underscored a perceived injustice that he felt compelled to address, framing it as a matter of principle.
Legal Avenues and Public Appeals
The situation took a dramatic turn on Tuesday when Rodtang sought to formalize his grievance by visiting the Crime Suppression Division of the Royal Thai Police. Accompanied by media, he stated that his "limit of patience" had been reached and that he was pursuing the matter to protect himself and his family. This public appeal to law enforcement signaled a significant escalation beyond mere contractual negotiations.
Following ONE Championship’s official statement regarding legal proceedings, Rodtang released a video of a phone call, accompanied by a caption detailing his frustrations. He claimed that he had signed documents in 2022 but did not receive the full contract until November 2025. He reiterated his inability to read English and expressed his dismay at being sued by a company that had previously presented itself as a familial entity.
A Troubled History of Negotiations
The current crisis appears to be the culmination of a series of mounting frustrations for Rodtang. Even in the lead-up to his planned bout against Nong-O Hama in Tokyo in November 2025, Rodtang had reportedly expressed visible discontent through cryptic social media posts, hinting at growing dissatisfaction surrounding his remuneration.
Sources suggest that after losing his flyweight Muay Thai world title on the scales in late 2024, Rodtang’s standard guaranteed purse experienced a significant reduction from champion-level earnings. This perceived devaluation reportedly contributed to his disgruntlement leading into the Nong-O fight. While he narrowly made weight for that bout, he subsequently fell severely ill, requiring medical attention and hospitalization, which ultimately led to the cancellation of the fight.
A Fleeting Reconciliation and Renewed Conflict
For a brief period, it seemed as though a reconciliation had been achieved. In February, Rodtang shared a photograph of himself embracing ONE Championship CEO Chatri Sityodtong, accompanied by expressions of optimism about their future collaboration. Shortly thereafter, his rematch with Takeru was officially announced for the inaugural ONE Samurai 1 event, with the added incentive of an interim flyweight kickboxing world title on the line.
The Bangkok Post understands that Rodtang’s knockout victory over Takeru in Saitama the previous year earned him approximately $470,000 USD, and his purse for the upcoming rematch was believed to be in a similar range. This financial consideration likely played a role in his agreement to the Tokyo return, despite the underlying contractual issues.
However, any perceived truce proved to be ephemeral. The confluence of Rodtang’s public pronouncements on his contract status, reporting on his legal standing, his subsequent allegations of forgery, and now ONE Championship’s formal legal action has transformed what might have been a tense negotiation into an open and public rupture.
Broader Implications for ONE Championship and the Japanese Market
This highly publicized dispute carries significant implications that extend far beyond the individual contract of one athlete. ONE Samurai 1 is intended to launch the promotion’s new monthly series in Japan, a market that ONE Championship has clearly identified as a strategic priority for growth. The event is also being promoted as a global pay-per-view, amplifying the potential financial and reputational damage if the headline bout were to collapse at short notice.
While the ONE Samurai 1 card still features a formidable lineup, including three other world title fights and a roster heavily populated with Japanese talent designed to captivate the local audience, the absence of Rodtang vs. Takeru would undoubtedly diminish its star power and impact. The narrative of Takeru’s highly anticipated farewell bout, seeking revenge against the fighter who defeated him last year, would be irrevocably altered.
The potential for a replacement opponent for Takeru, particularly at this late stage, appears uncertain. The 34-year-old Japanese icon has consistently framed this fight as his last opportunity for retribution. Jonathan Di Bella, the strawweight kickboxing champion, has publicly signaled his availability with an "always ready" message on social media, suggesting a potential, albeit different, high-profile matchup.
An Unfolding Crisis
As of now, the Rodtang vs. Takeru bout remains officially on the schedule. Nevertheless, with legal proceedings initiated in three countries, public accusations exchanged between parties, and Rodtang actively engaging both the police and social media platforms, the launch of ONE Samurai 1 has been significantly overshadowed by a crisis that neither side can now contain behind closed doors. The outcome of these legal battles and the eventual fate of this highly anticipated rematch will undoubtedly shape the future trajectory of ONE Championship’s expansion in Japan and its broader standing in the global combat sports landscape.
