Roosevelt Sousa was born on March 11, 1993, in Paraíba, Brazil, and arrived at Brazilian Jiu-Jitsu by way of a sport that could hardly be more different. At 17, already standing 193 centimeters tall, he took up volleyball and spent four years competing in both the indoor and beach formats. His size and athleticism made him a promising prospect, but a breakthrough at the highest level of volleyball remained elusive into his early twenties.

The turning point came on his birthday in 2014, when a friend invited him to try a jiu-jitsu class. The connection was immediate. Sousa stepped onto the mat and discovered a sport that seemed purpose-built for his combination of size, length, and natural athleticism. The same physical attributes that had made him a compelling volleyball player — a large frame, exceptional mobility for his dimensions, and sharp competitive instincts — translated directly into the ultra-heavyweight grappling division, where he would become one of his generation's most recognized competitors.

Roosevelt Sousa's development as a grappler was shaped almost entirely by a single coach: Iuri Alves, who guided him from white belt through every rank that followed. Under Alves, Sousa built a guard-heavy game that leveraged his length and athleticism, and he began accumulating results on the competition circuit as early as his blue belt years. In 2016, he took gold at the CBJJ Brazilian Nationals and the IBJJF South American Championship, establishing himself as a serious prospect within Brazil's competitive scene. By purple belt, he had extended his reach internationally, capturing gold at the 2018 AJP Abu Dhabi World Pro in his division.

It was at brown belt, however, that Sousa announced himself to the wider grappling world. In 2019, he submitted a series of high-profile opponents — among them Mason Fowler, Roberto Jimenez, Matheus Luna, and Giancarlo Bodoni — en route to becoming the top-ranked brown belt in both the Gi and No-Gi IBJJF divisions. The story of how he financed his trip to the IBJJF World Championship in California that year became one of the more talked-about anecdotes in the community: lacking funds, Sousa sold water bottles on the street to raise the money needed to compete.

Word of his situation reached Rômulo Barral, the legendary competitor and instructor, who offered Sousa a place at his pre-Worlds training camp in Northridge, California. The gesture proved consequential. Sousa went on to win both the IBJJF World Championship No-Gi and the Pan Championship No-Gi at brown belt in 2019, cementing his status as the dominant force in his division at the colored belt level.

His time in the United States also introduced him to Roberto Cyborg, who invited Sousa to train at Fight Sports in Miami. Cyborg was preparing for a super-fight against Nicholas Meregali and needed tall, active guard players as training partners — a role Sousa filled naturally. He felt at home within the Fight Sports environment and went on to represent the team at several events.

When Iuri Alves relocated to the United Arab Emirates in 2018, Sousa eventually followed. In August 2020, following his brown belt successes, Alves awarded Sousa his black belt in the UAE — a promotion that formally recognized a competitive record that had already spoken for itself.

The transition to black belt competition was complicated almost immediately by a bureaucratic crisis with lasting consequences. During his 2019 stay in the United States, Sousa had sought to convert his tourist visa into an athlete visa (P1) with the assistance of a lawyer. Due to what Sousa has described as mismanagement by that attorney, he inadvertently overstayed his tourist visa and was subsequently banned from re-entering the United States — a setback with significant implications for his competitive career given how many major events are held on American soil.

The consequences became most visible in 2021, when Sousa was forced to miss the IBJJF World Championship despite holding the number-one ranking in his division. It was a painful absence made all the more stark by the fact that the ranking had been earned through genuine competitive dominance. Sousa has since spoken publicly about the experience, advising other athletes to vet immigration attorneys carefully and to rely only on those with proven track records and strong recommendations from trusted sources.

Rather than allowing the visa situation to derail his momentum, Sousa redirected his competitive energy toward the AJP circuit, which offered elite-level competition outside the United States. In 2021, he dominated the circuit, claiming both the AJP Grand Slam heavyweight title and the King of Mats heavyweight title. Across his black belt career to that point, he maintained a submission rate of approximately 75 percent across 16 wins — a figure that underscored the finishing-oriented style he had developed under Iuri Alves and continued to refine at Fight Sports.

Sousa announced his arrival on the submission grappling stage in 2022 by winning the ADCC Brazilian Trials, earning a place at his debut appearance at the 2022 ADCC World Championship in Las Vegas. He reached the podium with a bronze medal — a result that validated his standing among the world's elite no-gi grapplers.

The defining moment of the tournament, however, lasted just 11 seconds. In the semifinal, Sousa faced Gordon Ryan, who submitted him via heel hook before the encounter had barely begun. Sousa has reflected on the match in detail, describing Ryan as the greatest in the sport and crediting his ability to establish threatening positions before opponents recognize the danger. Going into the match, Sousa had anticipated a wrestling-heavy approach based on Ryan's activity earlier in the bracket. Instead, Ryan closed the distance immediately, changed levels, and entered on Sousa's leg. Sousa felt torque in his knee and tapped, later acknowledging that he lacked a deep understanding of heel hook mechanics at the time — specifically the hip and knee isolation that defines a fully locked position.

In a September 2026 interview with BJJ Doc, Sousa reflected candidly on the experience, describing his pre-ADCC competitive identity as a large Brazilian guard player who relied on size and strength while largely ignoring lower-body attacks. He admitted he was, in his own words, "super scared" of heel hooks and had largely dismissed leg entanglement threats from training partners. The Ryan match forced a direct confrontation with that gap in his game.

The 11-second submission at the 2022 ADCC World Championship became a catalyst for reinvention. In the months that followed, Sousa undertook a deliberate and systematic overhaul of his approach to lower-body attacks and defenses. Rather than continuing to avoid leg entanglements in training, he began entering dangerous positions intentionally, drilling escapes extensively, and allowing training partners to attack his legs during recorded sessions to build familiarity with the sensations and mechanics of heel hook entries.

By September 2022, Sousa expressed confidence that he had developed the tools to defend the specific entry Gordon Ryan had used against him, crediting months of focused work on leg entanglement defense for the shift. The transformation he described was not merely technical — it represented a philosophical change in how he approached the full landscape of submission grappling.

In his September 2026 interview with BJJ Doc, Sousa stated that his primary motivation for wanting a future match with Gordon Ryan is to measure his own technical development, rather than to respond to outside criticism or prove a point to anyone else. His evolution in this area reflects a broader trend in ultra-heavyweight grappling, where lower-body attack literacy has become an increasingly non-negotiable component of complete competition readiness.

Beyond his performances in traditional IBJJF and ADCC formats, Sousa has competed in events using a sunken pit format — including appearances with Karate Combat — as well as at the UFC Invitational. These experiences informed strong views that he shared in a September 2026 interview with BJJ Doc.

Sousa expressed pointed criticism of conventional competition formats that rely on out-of-bounds resets, describing the practice as detrimental to athletes, referees, and spectators alike. His objection is specific: traditional boundary rules allow competitors to intentionally use the mat's edge to escape takedowns, sweeps, or submission attempts, effectively weaponizing the out-of-bounds reset as a defensive tool. Sousa recalled personally losing advantageous positions — including situations where he was close to securing a back-take — due to boundary-induced stoppages.

By contrast, he endorsed the pit format used by promotions such as the Craig Jones Invitational, explaining that the structure's sloped walls naturally return competitors to the center of the competition area, minimizing resets without requiring referee intervention. In the BJJ Doc interview, he described the format plainly: "There's no way the mat will be reset, only if the person falls out of the pit... It's great. I love it, and it's the future of jiu-jitsu." He elaborated on the psychological and strategic effect the pit's periphery creates: "It's uncomfortable when you start walking on the edge, and that forces you to stay on top. Feels like you're going to fall if you stay on the edge."

Sousa's broader point was one of adaptability — that skilled athletes adjust to any competitive environment, and that experience in the pit allows competitors to build coherent strategies around its unique dynamics rather than relying on boundary-dependent tactics.

In January 2026, the United States Anti-Doping Agency announced that Roosevelt Sousa had been suspended for the presence of meldonium, a metabolic drug that appears on the World Anti-Doping Agency prohibited list. The suspension was formally dated from January 13, 2026, and runs through January 12, 2029 — a three-year ban that renders Sousa ineligible to compete in USADA-tested events for the duration of that period.

Meldonium has been the subject of numerous high-profile anti-doping cases across combat sports and other athletic disciplines since its addition to the WADA prohibited list. The announcement came at a point when Sousa had been building toward a return to major no-gi and submission grappling competition, following his bronze medal at the 2022 ADCC World Championship and additional performances in 2023, including gold at the IBJJF World Championship No-Gi and the Pan Championship No-Gi at black belt. The suspension significantly alters the trajectory of what had been one of the more compelling careers in the ultra-heavyweight grappling division.