Jiu-jitsu athlete Willian Masuda, widely known as Kabuto, lost movement and sensation from the chest down after suffering a severe cervical spine injury during a match at the Super Pro Jiu-Jitsu 2026 championship in Londrina, Paraná, according to official statements. The black belt competitor underwent a nearly ten-hour surgery following the accident and remains hospitalized in an intensive care unit, where he is currently reported as clinically stable and breathing without mechanical assistance, though he has only discrete movement in his arms and faces an indefinite recovery timeline.
The Banned Move and In-Ring Impact
The injury occurred during a bout against competitor Juliano Di Pelli Machado when Masuda was subjected to the “bate-estaca” technique. The maneuver involves lifting an opponent, turning them upside down, and on the sequence, the adversary projects the body onto him. This specific action is banned in jiu-jitsu because it exposes the adversary to serious injuries. Video footage reviewed shows Masuda lifted into an upside down position before the opponent projects his body onto him. The referee stopped the contest immediately after the action, and while Masuda attempted to stand up, he could not.
Legal Scrutiny and Prosecutor Involvement
The incident has drawn formal legal attention from state authorities in Paraná. The Ministério Público do Paraná presented a criminal notice and requested that the Civil Police open an inquiry to investigate the conduct of Juliano Di Pelli Machado. Prosecutor Renato de Lima Castro, who holds a jiu-jitsu black belt and was accompanying the competition, publicly criticized the execution of the move, noting that the adversary would have projected the weight of the body onto Willian, who was with his head supported on the floor and in a position of vulnerability. The prosecutor defended that the athlete be held responsible.
Organizer Response and Defense Position
Event organizers addressed the aftermath of the severe spinal trauma. Representatives for the Super Pro Jiu-Jitsu tournament informed the CBN radio network that Willian received medical care immediately following the episode. The event counted on an ambulance and a rescue team, and the fighter was sent for specialized evaluation. Organizers classified the occurrence as an “out of the ordinary incident” and stated they accompany the situation with the athlete’s family and are collaborating with the authorities. Meanwhile, legal counsel for Juliano Di Pelli Machado released a statement indicating that the athlete is deeply shaken by the health state of Willian and remains at the disposal of the authorities. The defense also defended that the episode be analyzed based on the images of the fight, the rules of jiu-jitsu, and the evaluation of the arbitration. The defense further stated that Juliano is a professional athlete, medalist in European and world championships and that he has no history of disciplinary punishments or unsportsmanlike conduct.
Frequently Asked Questions
What is the “bate-estaca” move in jiu-jitsu?
The “bate-estaca” is a movement banned from the sport precisely because it exposes the adversary to serious injuries. Willian is lifted by the other athlete, stays upside down, and, on the sequence, Juliano projects the body onto him.
What is Willian Masuda’s current medical status?
According to official updates, Masuda is recovering in an intensive care unit after a nearly 10-hour surgery for a high cervical fracture. He is clinically stable and breathes without the help of devices, but he lost movements and the sensitivity of the region of the thorax to the bottom of the body and retains only discrete movement in his arms, with no discharge forecast yet.
Are authorities investigating the incident?
Yes. The Ministério Público do Paraná presented a criminal notice and asked the Civil Police to open an inquiry to investigate the conduct of Juliano.
Join the Discussion
What are your thoughts on safety enforcement in grappling tournaments? Share your perspective in the comments below, and subscribe to our newsletter for ongoing updates on this developing story.

Keep reading