Rhabdomyolysis and Competitive Setbacks

Daniel "Big Dan" Manasoiu has navigated significant health obstacles throughout his Brazilian Jiu-Jitsu career. Prior to ADCC 2024 World Championship, Manasoiu received a diagnosis of rhabdomyolysis—a severe condition that led to kidney damage. This medical challenge directly affected his preparation and performance at the elite level of submission grappling, forcing him to adapt his training regimen and competition strategy.

Lyme Disease and Alternative Therapies

In August 2025, Manasoiu withdrew from the Craig Jones Invitational 2 after being diagnosed with Lyme disease. He pursued an aggressive and multifaceted treatment plan, incorporating high-dose antibiotics, ozone therapy, NAD+ treatments, and EBOO (Extracorporeal Blood Oxygenation and Ozonation) therapy at the Texas clinic Ways2Well. Manasoiu publicly endorsed these alternative modalities, describing EBOO as a "supercharged blood cleanse." Despite his advocacy, as of August 26, 2025, reporting sources highlighted that EBOO and ozone therapy lack scientific validation for Lyme disease treatment. By sharing his experiences and treatment decisions, Manasoiu has sparked broader discussions within the BJJ community about medical advocacy, the risks and benefits of alternative therapies, and the importance of informed decision-making for athletes.

Fundraiser for Team Member Ezekiel ("Buba")

Manasoiu has demonstrated a strong commitment to supporting his teammates and the wider grappling community. In September 2025, he organized a fundraiser to assist Ezekiel ("Buba"), a member of New Wave Jiu-Jitsu, following Buba's emergency brain tumor surgery. To help offset medical expenses, Manasoiu offered private Brazilian Jiu-Jitsu lessons in exchange for donations. The GoFundMe campaign (https://www.gofundme.com/f/support-ezekiels-recovery-from-brain-surgery) raised over $11,100 from 129 donations as of September 22, 2025, with Manasoiu personally contributing $1,000. He emphasized Ezekiel's pivotal role in New Wave Jiu-Jitsu's ADCC training camps and highlighted the ongoing need for support as a second surgery approached. This initiative underscores Manasoiu's dedication to mutual aid and solidarity within the grappling world, setting a standard for athlete-driven community support.

Engaging with Training Methodology Discourse

Manasoiu has actively contributed to the evolution of training methodologies in Brazilian Jiu-Jitsu. He participated in a public debate with coach Greg Souders regarding ecological approaches to BJJ training. By engaging in this discourse, Manasoiu has helped foster critical analysis of skill acquisition strategies, highlighting the diversity of perspectives on optimal training methods. His involvement reflects a commitment to advancing technical understanding and promoting innovation within the grappling community.