List of Arbitrators

  • Richard McLaren Bio pic

    Richard H. McLaren, O.C., LL.B., LL.M., C.Arb.
    Chief Arbitrator

    Richard McLaren serves as the Chief Arbitrator for Anti-Doping Policy Violations under the Ultimate Fighting Championship Anti-Doping Policy and UFC Arbitration Rules. He is a commercial lawyer, arbitrator, mediator, and professor of law with an extraordinary global reputation in sport. He is a longstanding member of the International Court of Arbitration for Sport (CAS) and has been a member of the ad Hoc Divisions of the CAS at five Olympic Games. His positions include a seat on the Strauss Institute, Council of Distinguished Advisors (Pepperdine University), Visiting Fellow, Faculty of Law, Melbourne University, and Chair Emeritus of the Sports Law Institute at Marquette University. Mr. McLaren is former President of the Basketball Arbitral Tribunal in Geneva Switzerland and is an elected judge to the FIA International Court of Appeal. He is an Anti-Corruption Hearing Officer for the Uniform Tennis Anti-Corruption Program, Chair of the Anti-Doping Tribunal of the International Cricket Council, and Chair of the Doping Control Board for the Caribbean Cricket Council. Mr. McLaren also acts as the Chief Arbitrator for IRONMAN in respect to anti-doping violations under the IRONMAN Anti-Doping Policy. He served as the only non-American advisor to Senator Mitchell in the Major League Baseball Anti-Doping Drug Inquiry. In December, 2014, Mr. McLaren was appointed by WADA to a three person Independent Commission to investigate international doping issues in the sport of athletics (IAAF), and was subsequently appointed as the Independent Person who led the WADA Investigation of Sochi Allegations arising from the previous Independent Commission resulting in publication of the "McLaren Report". In December, 2015, Mr. McLaren was appointed as an Officer of the Order of Canada.

  • Mark Baker Bio pic

    Mark Baker

    Mark Baker is Global Co-Head of International Arbitration and a member of the Norton Rose Fulbright Global Supervisory Board. He practices in the areas of complex commercial arbitration, business litigation, sports law, and alternative dispute resolution (ADR). He has chaired, on average, eight international arbitration cases each year since 1998. Mark received the 2015 Client Choice Award, Texas, Arbitration & ADR by Globe Business Publishing, and was selected as 2014 Lawyer of the Year - Houston International Arbitration: Commercial by The Best Lawyers in America. Mark is recognized as one of the “100 Most Influential Lawyers in America” by National Law Journal. He is internationally ranked for his arbitration work by Chambers Global, Chambers USA, Chambers Latin America, Global Counsel, LawDragon, Legal 500, The International Who’s Who of Commercial Arbitration, The International Who’s Who of Business Lawyers, Who’s Who of Oil & Gas Lawyers, and The Best Lawyers in America.

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  • Michael Beloff Bio pic

    The Honourable Michael Beloff, QC

    Michael Beloff QC has been a member of the Court of Arbitration for Sport for 20 years and has arbitrated at 4 summer Olympics. He is Chairman of the IAAF Ethics Board, Chairman of the ICC Code of Conduct Commission, a Member of the FIA International Appeal Tribunal, and a Steward of the Royal Automobile Club. He is a former President of Trinity College, Oxford and Senior Ordinary Appeal Judge of Jersey and Guernsey. He is the editor of Sweet and Maxwells International Sports Law Review and co-author of Sports Law.

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  • Lars Halgreen Bio pic

    Lars Halgreen

    Lars Halgreen is a Danish lawyer and a partner at Magnusson law firm in Copenhagen. He holds a master degree in law from Duke University from 1992 and Ph.D from Aarhus University from 2004. He has been one of only a few appointed arbitrators at the Court at Arbitration for Sport (CAS) from the Nordic countries and has arbitrated on nearly 75 cases since 2004. Apart from his extensive experience at CAS, Mr. Halgreen has also been involved in numerous sports related cases in Denmark both as an arbitrator and as general counsel. In 2004 he published a comprehensive text book on European and US sport Law (European Sports Law – A Comparative Analysis of the European and American Model of Sport). Mr. Halgreen has also published the leading text book on sports law in Denmark. He serves as an associated professor in International Sports Law at the Copenhagen University and is a frequent speaker at sports law conferences.

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  • Dr Tricia Kavanagh Bio pic

    (The Hon) Dr. Tricia Kavanagh

    The Honourable Dr. Tricia Kavanagh Dip Ed LLB (Hons) PhD (Law): Sydney, Australia, Appointed Justice of the Industrial Court of New South Wales (NSW), Deputy President of the Industrial Relations Commission of NSW, Deputy Chair of the NSW Medical Tribunal, and Member of the Racing Tribunal of NSW. Arbitrator, International Court of Arbitration for Sport (CAS/TAS), Arbitrator Sydney 2000 Olympics. As Barrister & Arbitrator, specialises in labour law, contracts, employment & doping.

  • Dr Tricia Kavanagh Bio pic

    Jennifer Kirby

    Jennifer Kirby is an internationally recognized arbitration expert, who sits as arbitrator in a wide variety of commercial and sports arbitration matters. Jennifer began her career with a multinational firm as a New York litigator, representing clients in both international arbitrations and complex commercial litigations, with a particular focus on securities, insurance, mergers and acquisitions and white-collar criminal defense. From there, Jennifer went to the ICC International Court of Arbitration, where she served as both Counsel and Deputy Secretary General before leaving to join a multinational law firm as a partner in their arbitration group. In 2010, Jennifer founded her own arbitration practice, Kirby, in Paris. Jennifer has been recognized by Chambers Global as “a true expert in ICC-related disputes” and by The Who’s Who of International Arbitration as a “very sharp” global player in the field.

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  • Markus Manninen bio pic

    Jeffrey Mishkin

    Jeffrey Mishkin, the former Executive Vice-President and Chief Legal Officer of the National Basketball Association, has directed the Sports Practice at Skadden, Arps for the past twenty years. His clients have included, in addition to the NBA, the PGA TOUR, National Football League, National Hockey League, Major League Baseball, National Collegiate Athletic Association, United States Tennis Association, Major League Baseball Advanced Media, Collegiate Licensing Association, Madison Square Garden, New York Knicks, New York Rangers, New Jersey (now Brooklyn) Nets, Boston Celtics, Phoenix Suns, Toronto Raptors, Toronto Maple Leafs, Denver Nuggets, Miami Heat, St. Louis Cardinals and many other sports organizations. Mr. Mishkin has served as lead counsel in many of the most important sports litigations over the past 40 years.

    He is a long-time arbitrator for the Court of Arbitration for Sport and the American Arbitration Association, North American Court of Arbitration for Sport. In his role as arbitrator, Mr. Mishkin has heard dozens of sports disputes including those arising under domestic and international antidoping regulations, and under the rules and regulations of numerous international federations. Mr. Mishkin also served as the President of the Arbitral Panel for the America's Cup in 2017.

    He has been listed repeatedly for sports law in Chambers USA: America's Leading Lawyers for Business and The Best Lawyers in America, in which he was named 2020, 2018 and 2012 New York Sports Lawyer of the Year. He also was named as a Global Elite Thought Leader in Sports by Who's Who Legal 2019, as a Sports MVP by Law 360 in 2015, as a leading lawyer in the Legal 500 in 2015 and 2016 and as a Power Player in 2016 by Sports Business Journal. He was named one of the Most Highly Regarded Individuals by The International Who's Who of Sports & Entertainment Lawyers in 2013 and was included in Lawdragon 500 Leading Lawyers in America.

  • Markus Manninen bio pic

    Markus Manninen

    Markus Manninen possesses extensive experience in dispute resolution. He has litigated and arbitrated a number of varying disputes relating to, for example, M&A transactions, international trade, insurance contracts and lease agreements. He regularly represents Finnish and foreign corporations in both domestic and international ad hoc arbitrations, as well as in arbitrations administered by various institutional rules (i.a. ICC, SCAI, SIAC and FAI). In addition, he frequently serves as a sole or party-nominated arbitrator in both ad hoc and administered arbitration proceedings. He is a member of the CAS as well as IBU's Anti-Doping Hearing Panel and Court of Arbitration. He has been a member of FINADA's Supervisory Group since 2009 and was promoted to its chairman in 2015. He also serves as a vice-chairman of the Disciplinary Board of the Finnish Bar Association. He is ranked in the Best Lawyers® list for Finland (Arbitration and Mediation, Litigation and Sports Law).

  • Matthew Mitten bio pic

    Matthew J. Mitten

    Matthew J. Mitten is a professor of law and the Executive Director of the National Sports Law Institute at Marquette University Law School. He is an arbitrator for the Court of Arbitration for Sport (serving on the ad hoc Division for the XXI Winter Olympic Games in Sochi, Russia), the American Arbitration Association’s commercial, consumer, and Olympic sports arbitration panels, and Ladies Professional Golfers Association’s doping arbitration panel, serving as the sole arbitrator, chair, or panel member in 36 sports cases and 19 commercial or consumer cases. He has authored Sports Law in the United States (Wolters Kluwer 3d. ed. 2017) and co-authored law school and undergraduate sports law textbooks. He is a former president and current member of the Sports Lawyers Association’s Board of Directors, who formerly chaired the National Collegiate Athletic Association’s Committee on Competitive Safeguards and Medical Aspects of Sports (which resolves college athlete doping appeals).

  • Mark Muedeking bio pic

    Mark Muedeking

    Mark Muedeking is a partner in the global law firm DLA Piper. Prior to joining the firm, Mark was an attorney for the United States Department of Justice. Mark was the Managing Director and General Counsel of the United States Olympic Committee. He is an arbitrator for the Court of Arbitration for Sport (CAS) and the American Arbitration Association (AAA); he has served on and advised numerous panels and commissions related to disputes arising in sport. He was an investigator and advisor to Senator George Mitchell in the preparation and publication of the Report to the Commissioner of Baseball Regarding the Illegal Use of Steroids and Other Performance Enhancing Substances by Players in Major League Baseball. The respected international research firm Chambers & Partners recognized Mark in Chambers USA as being "highly regarded" and he has been recommended in the respected legal directory The Legal 500 United States.

  • Carol Roberts bio pic

    Carol Roberts

    Carol Roberts has over 20 years of experience as a decision maker in a variety of areas including human rights, property assessment, employment and personal injury. Prior to entering the adjudicative field, she was Constitutional Counsel for the Government of the Northwest Territories and was a lawyer in private practise. Ms. Roberts advises a variety of agencies on governance and conflict of interest issues and has conducted many harassment investigations for government agencies. Ms. Roberts has been a member of the Sport Dispute Resolution Centre of Canada for over 10 years as well as a member of the Court of Arbitration for Sport (CAS). She was on the ad hoc Division of CAS at the 2016 Olympics in Rio. She is also a member of the International Floorball Federation’s Ethics Commission.

  • Jean Philippe Rochat pic

    Jean-Philippe Rochat

    Jean-Philippe Rochat is an attorney and partner with Kellerhals Carrard, Lausanne, Switzerland specialising in: commercial, corporate, and contract law; sports law; and international arbitration, acting as arbitrator in commercial, trade, and sport cases. He received his law degree at the University of Lausanne and is a member of the Geneva Bar and Vaud Bar. Mr. Rochat served as the Secretary General of the Court of Arbitration for Sport (CAS) from 1994 to 1999. Mr. Rochat’s arbitration experience as Chairman, sole arbitrator, and party appointed arbitrator includes ICC, Swiss Rules, Uncitral, CAS, and other ad hoc arbitrations. Languages include French, English, Italian, and German.

  • Hans Nater bio pic

    Hans Nater

    Hans Nater is senior partner with Nater Dallafior Rechtsanwälte AG, Zurich. He graduated from the University of Zurich and received his LLM from Harvard Law School. Hans Nater is a litigation and arbitration specialist. He is on the list of Swiss ICC Arbitrators and served as an arbitrator of the Claims Resolution Tribunal for Dormant Accounts in Switzerland (CRT). Since his appointment to the CAS in the 1980ies he has been appointed as an arbitrator at the Court of Arbitration for Sports (CAS), he acted as Chairman or co-arbitrator in more than 200 sports arbitration and mediation cases. He has served as a member of the CAS ad hoc Division at the 2002, 2004 and 2006 Olympic Games in Salt Lake City, Athens and Torino respectively. Hans Nater speaks German, French, English and Italian.

  • Jean Philippe Rochat pic

    Maidie Oliveau

    Maidie Oliveau has worked in the sports industry for over 30 years and is Of Counsel at Arent Fox LLP. She has been an active arbitrator since 2000, on the Court of Arbitration for Sport (CAS), and on the sports and international commercial panels of the American Arbitration Association. She has served on over 90 arbitral panels; in the last 5 years acting as chair of the panel on 21 cases, and 13 as sole arbitrator. These cases involve primarily doping and Olympic eligibility disputes, but also include domestic and international commercial breach of contract and governing body affiliation disputes. She has been a tribunal member of the CAS ad hoc Division at 5 Olympic Games and was recently appointed to the IAAF Disciplinary Tribunal.

    Her full bio can be found at

  • Jean Philippe Rochat pic

    Janie Soublière

    Janie holds a Bachelor's Degree in Social Sciences, a Bachelors Degree in Common Law, is a member in good standing of the Ontario Bar Association since 2002 and holds a Masters in International Sport Law (her masters thesis focusing on the respect of athletes' procedural rights in sport arbitration). As the head of Soubliere Sport Law, Janie acts as Legal Counsel and Consultant in anti-doping, safeguarding, governance, anti-corruption, policy review etc. She shares her practice working in arbitration. As a Chartered Arbitrator, she sits on sport dispute resolution panels including among others the Court of Arbitration for Sport, the Tennis Integrity Unit Anti-Corruption Disciplinary Panel, the World Athletics Disciplinary Tribunal, Ultimate Fighting Championships, Sport Resolutions, Zwift Esports and the SDRCC. Janie is actively involved as an investigator into sport context related allegations, has taught Sport Law at Carleton University and regularly guest lectures in University Sport Law courses, acted as athlete-agent to Canadian athletes, is an Executive Board member of the Canadian Ski Hall of Fame and is a North American representative of WISLaw (Women in Sport Law).

  • Jean Philippe Rochat pic

    Carolyn B. Witherspoon

    Carolyn B. Witherspoon is a Director in the firm of Cross, Gunter, Witherspoon & Galchus, P.C. practicing in the areas of labor and employment defense, transportation law and municipal/government law. Carolyn represents public and private employers in employment related matters, including Title VII litigation. Carolyn is active in the Arkansas and American Bar Associations; is a member of the prestigious Union Internationale des Avocats; and also serves as an arbitrator for the Court of Arbitration for Sport. She serves as an arbitrator for FINRA, the UFC Arbitration Panel and is a Member of the American Arbitration Association Roster of Employment Arbitrators and Mediators and the Large Complex Case Panel. In 2013, Arkansas Governor Mike Beebe appointed her to the Commission on Uniform State Laws. She is listed among the top lawyers in the nation by Best Lawyers in America, Chambers USA: America's Leading Business Lawyers, Mid-South Super Lawyers and was named to the Mid-South Super Lawyers Top 50 list of attorneys in Arkansas. She is currently serving as Chair of the American Bar Association Commission on Interest on Lawyers’ Trust Accounts.