Professional Boxing & Mixed Martial Arts (MMA)

Legal Services for Professional Boxers and Combat Sports Athletes

At Sentient Law, we know the fight doesn’t stop when the bell rings. Too often, we’ve seen talented athletes taken advantage of by managers, promoters, or bad business deals. That’s why we’re here—to protect you, your career, and your future.

We specialize in representing boxers and mixed martial artists, providing legal and business counsel that’s tailored to the unique challenges of life in and beyond the ring. Whether you’re just starting your career or you’re a seasoned pro, our mission is to help you build, protect, and grow your legacy. Sentient Law has worked with professional fighters such as Daniyar Yeleussinov, Christian Lee, Julio Gomez, and Jean-Pierre Augustin.

But we go beyond contracts and negotiations. We’re here to support your vision—whether that’s launching your own gym, starting a clothing line, investing in businesses, or exploring other entrepreneurial ventures. We’ve helped fighters turn their platforms into long-term success, and we’re passionate about guiding you toward generational wealth for your family.

We don’t just want to see you grow—we want to grow with you. That means planning for the future, protecting your assets, and ensuring your loved ones are taken care of, especially in the event of injury or unexpected life changes.

And with our trusted network of contacts across the combat sports industry, we can help open doors, make connections, and position you for lasting success in and out of the spotlight.

 

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Why Choose Sentient Law for Your Legal Needs

Deep Understanding of Combat Sports

Our founder, Matthew Rossetti, isn’t just an attorney—he’s a dedicated boxing enthusiast with firsthand experience in the sport. He has hands-on training experience at TDC, Power Boxing, and Imazaki Dojo, and has trained under Joe Cassano at Jab Boxing and Fitness. Matt understands the discipline, sacrifice, and culture that defines combat sports. He’s spent years immersed in the fight world—not just in the gym, but ringside as a dedicated fan. Whether it’s a local debut or a world title bout, Matt watches every fight from start to finish, following the journey of both rising prospects and seasoned champions. His legal advice comes from a place of genuine passion and firsthand knowledge—making him the kind of advocate every fighter needs in their corner.

Comprehensive Legal Services for Professional Boxers, MMA, and Combat Sports Athletes

We offer a full suite of legal services designed specifically for combat sports athletes:​

  • Contract Review and Negotiation
    Ensure your fight agreements, appearance deals, and performance bonuses are fair and protect your long-term interests.
  • Sponsorship and Endorsement Deals
    Maximize your earning potential by securing well-negotiated sponsorships and endorsements that align with your brand, while avoiding common legal pitfalls.
  • Intellectual Property Protection
    Safeguard your name, likeness, and personal brand from unauthorized use or exploitation—on social media, in merchandising, and beyond.
  • Risk Management and Insurance
    We help assess the legal risks in your career and advise on appropriate insurance coverage to protect against injury, liability, and career interruptions.
  • Business Formation and Management
    Set up a proper business structure (LLC, S-Corp, etc.) to manage earnings, reduce tax burdens, and plan for long-term financial growth.
  • Dispute Resolution
    From conflicts with promoters or sponsors to contractual breaches, we offer legal representation and mediation support to resolve issues efficiently.
  • Career Development and Planning
    We don’t just protect your present—we help build your future. From strategic career decisions and brand building to long-term planning beyond the ring, we’re here to support your growth every step of the way. 

Trusted Legal Representation Across Top Combat Sports Organizations

At Sentient Law, we’re proud to represent fighters competing in the world’s most prestigious combat sports promotions. Whether you’re climbing the ranks or already fighting on pay-per-view cards, our legal team understands the contracts, structures, and demands unique to each organization.

MMA Promotions We Work With:

  • UFC (Ultimate Fighting Championship) – We assist with bout agreements, image rights, and promotional obligations to ensure fighters are fairly represented.
  • Bellator MMA – Our experience includes negotiating contracts, bonus structures, and sponsorship deals within Bellator’s framework.
  • PFL (Professional Fighters League) – We help clients maximize seasonal performance incentives and long-term brand growth.
  • ONE Championship – International contracts, intellectual property rights, and appearance clauses are all handled with precision.
  • KSW (Konfrontacja Sztuk Walki) – Europe-based fighters benefit from our knowledge of regional regulations and growth planning.
  • GLORY Kickboxing – We manage contract negotiations, merchandising rights, and athlete protections.

Professional Boxing Organizations:

  • WBC (World Boxing Council)
  • IBF (International Boxing Federation)
  • IBO (International Boxing Organization)
  • WBA (World Boxing Association)
  • The Ring Magazine

We can also help with USADA and VADA disputes. We understand that your time is valuable and that you need to focus on training and competing at the highest level. That’s why we’ll handle all the legal details for you, so you can focus on what you do best – fighting. We’ll keep you informed every step of the way, and we’ll always be available to answer your questions and address your concerns.

Our firm understands the nuances of each organization’s fighter agreements, promotional rights, bonus structures, and sponsorship limitations. Whether you’re negotiating a new contract, reviewing a bout agreement, or exploring free agency, we’ll protect your interests at every stage of your career.

If you’re a professional boxer or mixed martial artist looking for legal representation, please don’t hesitate to contact us. We’d be happy to discuss your situation and how we can help. Contact Sentient Law now at (512) 430-1150 or schedule a free consultation here.

 

For fighters serious about their careers, legal strategy is just as important as training. Our blog offers valuable insights into contract negotiation, brand protection, and the business of combat sports—written by attorneys who not only understand the law, but also understand the fight game. Explore our latest articles to learn more: