Willian “Kabuto” Hiroyuki Masuda suffered a serious cervical spine injury during a No-Gi match in Londrina, Brazil, and within a day the jiu-jitsu world had answered with more than US$132,000 in donations, roughly R$690,000 at current exchange rates.
The injury occurred on August 22 during an absolute No-Gi bout against Juliano Di Pelli Machado at Super Pro Jiu-Jitsu, held at the Moringão sports complex. Footage from the match shows Masuda caught in an inverted position during the exchange. He was removed from the venue for immediate treatment and underwent surgery soon after to stabilize his neck.
According to earlier reports which drew on information provided by the family, Masuda sustained fractures to his C5 and C6 vertebrae. As of an August 26 update, he had diminished feeling in his arms and no movement in his legs. His family has since reported some improvement, though local reports indicate he remains hospitalized with no timeline yet for release. Given how unpredictable recovery from a spinal cord injury can be, his family’s own statements remain the most reliable source on his condition going forward.
Masuda is a black belt and respected instructor known throughout the Brazilian Jiu-Jitsu community by his nickname, Kabuto. His wife, Fernanda Mayumi Machado Masuda, set up a fundraising campaign through Vakinha to help cover what promises to be a long and demanding recovery. Organizers say the money raised will go toward hospital and medical bills, medication, physiotherapy, in-home care, equipment, and the adjustments the family will need to make to their daily life. The campaign’s stated goal, roughly $126,000, was calculated using an August 28 exchange rate, but the running total continues to change, so anyone hoping to check current figures or contribute should go directly to the official campaign rather than relying on secondhand numbers.
What stands out most is how quickly the support materialized. Brazilian Jiu-Jitsu is a sport often split along the lines of academies, cities, competing rule sets, and long-running rivalries between teams. Yet when someone from within that world is facing a life-altering recovery, those lines tend to disappear almost overnight.
Much of that comes down to what an instructor actually means to the people around them. For students and training partners, a coach isn’t only the person leading warm-ups. They’re often the one who stays after class to fix a small technical detail, who makes space on a packed mat for a nervous newcomer, who drives young athletes to competitions, or who unlocks the gym doors early because someone needed a place to train. The outpouring around Kabuto reflects relationships built over years on the mat, not a reaction to a single headline.
There’s also a practical reality driving the fundraising effort. Recovery from a serious spinal injury doesn’t end once a patient leaves the operating room. The family has described an extended road ahead involving ongoing medical monitoring, physical therapy, and a dedicated care team, expenses that can add up well past the initial hospital stay. That’s part of why the campaign’s opening target should be viewed as a starting point rather than a final estimate of what his recovery will ultimately cost.
The circumstances surrounding the match itself are now under official review. Paraná’s Public Prosecutor’s Office has requested a police investigation, and the Civil Police have confirmed they will look into what happened. Attorneys for Machado, Masuda’s opponent in the match, say their client is cooperating fully with authorities, has expressed solidarity with Masuda, and is asking that investigators weigh the complete video footage, competition rules, and the referee’s account before drawing any conclusions. No formal determination of fault has been made.
A freelance journalist with more than seven years of experience covering a wide range of topics, with a focus on delivering accurate, engaging, and well-researched reporting. He studied at the University of Birmingham, where he developed a strong foundation in journalism and communications. Martin is a 10th Planet BJJ brown belt and has been training for approximately 10 years and a keen follower of submission grappling.
