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In episode #41 of Roll Science, we sit down with Daniel Riveron for a raw and inspiring conversation about faith, redemption, and fighting for purpose. From overcoming addiction to pursuing a life centered on faith and discipline, Daniel shares his powerful story of transformation through MMA and Brazilian Jiu-Jitsu. We dive into his upbringing, the pivotal moment that led him to embrace his faith, and how that decision helped him overcome past struggles. Daniel opens up about his experiences competing in both Jiu-Jitsu and MMA, and how finding purpose through martial arts gave him the structure and clarity he was missing. We also discuss the legacy of Georges St-Pierre (GSP), one of the greatest MMA champions of all time, and what his reign meant to Daniel as a fighter. Finally, Daniel shares what’s next for him—both inside the cage and beyond—as he continues to grow as a competitor, coach, and man of faith. This episode offers real insight into the power of martial arts to heal, transform, and drive deeper meaning in life. Follow Daniel Riveron: Instagram: @driveron Subscribe to Roll Science for weekly interviews with the fighters, coaches, and thinkers redefining martial arts culture. #DanielRiveron #MMA #BJJ #FaithAndFighting #AddictionRecovery #JiuJitsu #MartialArts #GSP #CombatSports #RollScience #PurposeThroughMartialArts #RS41 Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

In this episode of Roll Science, we’re joined by Gabe Tejada, a 10th Planet black belt and the head professor and founder of 10th Planet Miami, for a wide-ranging conversation that explores the role of martial arts in personal development and society at large. Gabe shares his martial arts journey, inspired by his father and family members, and breaks down the difference between being a martial artist and being a fighter. We dive into his views on parenting, modern societal shifts, and the influence of social media on the younger generation and the martial arts community. We also discuss the importance of training martial arts, not just for self-defense but as a tool for discipline, resilience, and personal growth. Gabe opens up about his desire to return to competition, reflecting on what drives him to continue evolving both as a coach and athlete. This episode is packed with powerful insights on life, growth, and the deeper meaning of martial arts in today’s world. Follow Gabe Tejada: Instagram: @gabetjj86 10th Planet Miami: @10thplanetmiami Subscribe to Roll Science for more conversations with leaders, athletes, and thinkers in combat sports. #GabeTejada #10thPlanetMiami #JiuJitsu #BJJ #MartialArts #CombatSports #Parenting #BJJCommunity #RollScience #BJJPhilosophy Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

In this episode of Roll Science, we sit down with Craig Edmondson, a Brazilian Jiu-Jitsu black belt from Logo's Jiu-Jitsu in Denver, Colorado, originally hailing from Indiana. Craig shares powerful insights from his time training at Damian Maia’s gym in Brazil, offering a deep dive into the differences between Brazilian jiu-jitsu and wrestling training environments. We also explore Craig’s journey through life, MMA, and the competitive world of jiu-jitsu, making this a must-watch for any grappling or combat sports fan. Whether you're a white belt, a seasoned wrestler, or an MMA enthusiast, this episode is packed with value. 👉 Don’t forget to like, comment, and subscribe for more jiu-jitsu podcasts, grappling breakdowns, and MMA insights. #BJJ #MMA #WrestlingVsJiuJitsu #CraigEdmondson #DamianMaia #BrazilianJiuJitsu #CombatSportsPodcast #JiuJitsuPodcast #RollScience #Grappling #NoGi #GiJiuJitsu #WrestlingTraining Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

In this episode of Roll Science, we sit down with Milton Campis, Jiu-Jitsu Dummies host,  CEO of Black founder of Academy Safe, for a critical conversation about addressing and preventing sexual predation within the martial arts community. Milton shares how he and his team are working to build a safer culture in gyms through the Academy Safe accreditation program, which focuses on accountability, awareness, and protection for students. Beyond this urgent topic, we also explore other aspects of Milton’s journey in martial arts, his insights into gym culture, and the importance of leadership and responsibility in shaping a positive environment for everyone. This episode is a must-watch for gym owners, coaches, athletes, and anyone who cares about creating a safe and respectful space in martial arts. Follow Milton Campis and Academy Safe: Instagram: @unclemiltybjj Academy Safe: @Academysafe Jiu-Jitsu Dummies: @jiujitsudummies Subscribe to Roll Science for more essential conversations on Jiu-Jitsu, MMA, and the culture of combat sports. #MiltonCampis #AcademySafe #MartialArtsSafety #JiuJitsu #BJJ #GymCulture #MartialArtsCommunity #RollScience #CombatSports #BJJLeadership Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

In this episode of Roll Science, we’re joined by Leilani Bernales, a fast-rising athlete in the Jiu-Jitsu world, to talk about her unique path into the sport. Leilani began training while attending college and medical school in Peru, initially as a way to stay active—but she quickly fell in love with the art of Jiu-Jitsu. She shares her story of moving from Peru to Miami, and the pivotal moment when she decided to pursue Jiu-Jitsu full-time, stepping away from her academic path in marine biology. We dive into her competitive mindset, her distinct grappling style, the challenges she faced during injury recovery, and her vision for the future—both on and off the mats. Leilani brings honesty, energy, and clarity to her journey, offering powerful takeaways for anyone following a passion that doesn’t fit the traditional mold. Follow Leilani Bernales: Instagram: @leilanibernales Subscribe to Roll Science for more interviews with athletes pushing the boundaries of Jiu-Jitsu and combat sports. #LeinaliBernales #JiuJitsu #BJJ #WomenInBJJ #Grappling #CombatSports #RollScience #BJJCompetition #AthleteMindset #MiamiBJJ Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

In this episode of Roll Science, we’re joined by Talita Alencar and Jed Dulaney, the founders of the Beach Jiu-Jitsu Federation, a new organization that’s reimagining how grappling events are structured—with a core focus on fairness, transparency, and athlete-first values. We explore the genesis of the federation, the ruleset they’ve developed, and the motivation behind creating a platform that supports athletes on and off the mats. Talita and Jed also share their vision for the future of the sport and what they hope to achieve through the federation’s growth. Talita Alencar is a multiple-time IBJJF World Champion, Pan American Champion, UFC fighter, and entrepreneur who recently earned a strong win on April 5, 2025. Jed Dulaney is a black belt, engineer, author, and entrepreneur, bringing a structured and innovative approach to the federation’s development. Whether you're an athlete, coach, or fan of the sport, this episode is a powerful look into what the next era of Jiu-Jitsu competition could look like. Follow Talita, Jed, and the Beach Jiu-Jitsu Federation: Instagram: @talitaalencarbjj Instagram: @jeddulaney Instagram: @beachjiujitsufederation Subscribe to Roll Science for more in-depth conversations on Jiu-Jitsu, MMA, and the evolution of combat sports. #JiuJitsu #BeachJiuJitsuFederation #TalitaAlencar #JedDulaney #BJJ #Grappling #CombatSports #BJJCompetition #AthleteFirst #RollScience Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

In this episode, we sit down with Pablo Hernandez to talk about the real-life challenges fighters face while pursuing a career in MMA. From balancing life’s ups and downs to showing up to training when life hits hard, we discuss the moments when fighters are just going through the motions—and how intentionality can be the game-changer. We explore what separates world-class competitors from journeymen: commitment, focus, and having clear goals inside and outside of the gym. As in life, there are levels to this—and it’s your ability to stay dedicated that makes all the difference. 🔥 Whether you're a fighter, a fan, or someone chasing a dream, this one’s for you. 👉 Like, subscribe, and leave a comment! 👉 New to the channel? Go back and check out our earlier episodes featuring some of the most inspiring people in combat sports. #MMA #FightersJourney #CombatSports #Discipline #Motivation #RollScience #RS34 #PabloHernandez @the_bestboy1 Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

In this episode of Roll Science, we sit down with Ben Stark, a seasoned MMA head coach and internationally ranked MMA cutman, currently coaching out of ATT Palm Beach Gardens. Ben was present during the early days of the legendary American Top Team (ATT) and has a wealth of experience in combat sports. We discuss the early days at ATT, the evolution of MMA coaching, and the ongoing debate around the ecological training approach. Ben also shares his perspective on the use of steroids in MMA, giving insight into how the sport has changed over the years. We dive into his personal journey through MMA, his role as a coach and cutman, and hear some hilarious anecdotes from his time in the sport. This episode is packed with valuable insights for fighters, coaches, and fans of MMA looking to understand the sport from a veteran’s perspective. Follow Ben Stark: Instagram: @mmacoachben Hammer Jiu-Jitsu Shop: https://www.hammerjiujitsushop.com/ Instagram: @hammerjiujitsushop Instagram: @FightTapeUS Subscribe to Roll Science for more in-depth MMA and Jiu-Jitsu discussions. #MMA #ATT #BenStark #MixedMartialArts #FightTraining #JiuJitsu #EcologicalTraining #MMAHistory #MMACoach #CombatSports #RollScience Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

In this episode of Roll Science, we sit down with Lucas Valle, a third-degree black belt in Brazilian Jiu-Jitsu, to discuss his journey through injury recovery, training evolution, and competition at the highest level. Lucas shares how he overcame a lung injury, the challenges of static drilling vs. ecological training, and the tough decision to move from Brazil to Miami after an unexpected change in plans. We dive into his experiences training at JT Torres’ gym, his goal of getting back into competition while balancing running Valle Jiu-Jitsu in New Hampshire, and his unique approach to coaching and training. Lucas provides expert insight into effective training methodologies, mental resilience in Jiu-Jitsu, and what it takes to compete at an elite level while managing a gym. This episode is a must-watch for Jiu-Jitsu practitioners, competitors, and coaches looking to improve their training, overcome obstacles, and gain high-level insights into the sport. Follow Lucas Valle: Instagram: @lucasvallebjj Valle Jiu-Jitsu Academy: https://vallebjj.com/ Subscribe to Roll Science for more in-depth Jiu-Jitsu discussions. #JiuJitsu #BJJ #LucasValle #BrazilianJiuJitsu #JTtorres #EcologicalTraining #BJJTraining #Grappling #MartialArts #RollScience Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

Welcome to Roll Science, the podcast that dives deep into the world of grappling and combat sports. In this episode, we sit down with Dr. José Torres, DC, MS—rehabilitation expert, coach, and experienced combat athlete. Based in Puerto Rico and working out of The Movement Clinic, Dr. Torres draws from his extensive experience competing at high levels in Tae Kwon Do and his current training in Brazilian Jiu-Jitsu. We discuss the recovery process, his approach to managing injuries, and strategies for getting back to training stronger and more resilient. Whether you’re an athlete overcoming setbacks or a coach supporting recovery, this episode offers invaluable insights and expert advice to help you recover smarter and perform better. instagram: Jose Toress | @movementrehabdoc Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

Welcome to Roll Science, the podcast that dives deep into the world of grappling and combat sports. In this episode, we speak with Andres Aleman, a Brazilian Jiu-Jitsu brown belt and coach at Valley Jiu-Jitsu. Andres brings extensive experience in Olympic-style weightlifting and heads Rose Barbell Club, where he specializes in strength and conditioning programs tailored for kids. Learn how his innovative training methods promote healthy athletic growth and prepare young athletes for high performance on the mats and beyond. Whether you’re a parent, coach, or athlete, this episode is packed with actionable insights into building strength, resilience, and confidence in the next generation. instagram: @aaleman305 Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

 In this episode of Roll Science, we sit down with Laz Amaro, owner and head instructor of Miami Jiu-Jitsu. Laz, a black belt under the esteemed Michel Porfirio Pereira, also known as "Buiu," represents the legendary Carlson Gracie lineage. We dive into Laz's martial arts journey, his teaching philosophy, and share some hilarious anecdotes along the way. Don't miss this insightful conversation with one of Miami's leading figures in jiu-jitsu!  Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

In Episode 28 of Roll Science, I sit down with Martin Corvetto and last-minute guest Sebastian Serpa, both top-tier competitors from the renowned Outer Heaven Jiu-Jitsu in Ft. Lauderdale, Florida, where they train under the Mahecha brothers. We dive deep into the current landscape of competitive jiu-jitsu in both gi and no-gi, their personal journeys, and the factors that drove them to pursue jiu-jitsu full-time. This episode is packed with insights and plenty of laughs—don’t miss it! 4o Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

In this episode of Roll Science, we sit down with Carlos Reyes, the owner and head instructor of Splendid Savage Jiu-Jitsu. Carlos shares his inspiring journey from an unhealthy lifestyle to earning a black belt in jiu-jitsu and becoming an instructor. He delves into his philosophy on preserving the essence of jiu-jitsu as a martial art, all while enjoying the sport’s competitive side. Full of funny anecdotes, laughter, and thought-provoking insights, this episode highlights why Carlos truly embodies the name of his academy—a Splendid Savage. Instagram: @splendidsavagejiujitsu Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv

 In this episode of Roll Science, we interview Abe, a data analyst and founder of Sub Stats, a project that uses data analysis to help athletes improve their jiu-jitsu performance. Abe also works with coaches to enhance their teams' competitive edge. Together, we analyze Kade Routolo's standout performance at the Craig Jones Invitational, exploring how data can be a game-changer in the sport. Tune in to discover how analytics can shape training strategies and boost performance on the mats.  Rollscience Instagram: @rollscience Mangostein.Tv : @mangostein.tv