Nick De Marco KC, Barrister at Blackstone Chambers, reviews the Second Edition of the ‘The Code of the Court of Arbitration for Sport: Commentary, Cases and Materials’ which offers a comprehensive, article-by-article commentary of the Court of Arbitration for Sport (CAS) Rules. The 900-page book draws on leading CAS and Swiss Federal Tribunal case law, internal CAS practices, and principles of international arbitration, the book guides readers through the complexities of CAS proceedings with clarity and precision.
The book can be purchased here[1].
Book Review
Known to me and many of my colleagues as the “Green Book”, or simply the “CAS Bible”, the much-awaited second edition of Mavromati and Reeb’s Commentary is, without doubt, the authoritative and comprehensive guide to the procedures of the Court of Arbitration for Sport (the CAS), the world’s pre-eminent specialist sports tribunal. It is invaluable to any practitioner appearing before CAS, and to anyone seeking to understand its jurisprudence and procedures.
The work is helpfully organised around the CAS Code itself, providing detailed explanation and analysis of each of its fundamental provisions and the most significant relevant case law. From jurisdiction, the scope of an appeal, time limits and costs to the content of pleadings such as the Statement of Appeal and Appeal Brief, it offers a highly practical guide to anyone involved in, or contemplating, proceedings before CAS.
In addition to chapters addressing the issues arising under each article, supported by copious references to CAS awards, the book contains practical annexes, tables and model documents to assist practitioners in preparing written submissions and hearings.
Alongside its thorough analysis of CAS jurisprudence, the work examines the Swiss Federal Tribunal’s supervisory jurisdiction over CAS awards.
As my friend and colleague Michael Beloff KC, who served as a CAS arbitrator from 1996 to 2023 and is one of its most distinguished former arbitrators, writes in his foreword to this edition: “The text’s exceptional usefulness was guaranteed by the identity of the co-authors.”
Dr Despina Mavromati is a Swiss and Greek lawyer, CAS arbitrator, member of the Appeals Chamber of the UEFA Club Financial Control Body, lecturer, writer and leading international expert on sports arbitration. Matthieu Reeb is a Swiss lawyer, writer and the longstanding Director General of CAS, with unrivalled institutional knowledge of its procedures and development.
I know from my own appearances before CAS how useful this book is. It is the one resource I always expect parties to cite and arbitrators to consult.
The second edition updates the work to reflect a decade of further jurisprudence and procedural development. It also adds new model documents and a chapter addressing the CAS ad hoc Rules and the Rules of the CAS Anti-Doping Division during the Olympic Games, giving practitioners valuable assistance both in drafting and in dealing with CAS’s most expedited procedures.
Coming from a common-law jurisdiction, many CAS procedures and aspects of its approach can initially appear foreign and, at times, bewildering in a way they may not to practitioners trained in civil-law systems. That is why this book has always been my starting point in any case before CAS. The new edition remains one of the most important legal texts on my shelf, or in my bag.

The Code of the Court of Arbitration for Sport: Commentary, Cases and Materials, Second Edition (Book Review)
Nick De Marco KC, Barrister at Blackstone Chambers, reviews the Second Edition of the ‘The Code of the Court of Arbitration for Sport: Commentary, Cases and Materials’ which offers a comprehensive, article-by-article commentary of the Court of Arbitration for Sport (CAS) Rules. The 900-page book draws on leading CAS and Swiss Federal Tribunal case law, internal CAS practices, and principles of international arbitration, the book guides readers through the complexities of CAS proceedings with clarity and precision.
The book can be purchased here[1].
Book Review
Known to me and many of my colleagues as the “Green Book”, or simply the “CAS Bible”, the much-awaited second edition of Mavromati and Reeb’s Commentary is, without doubt, the authoritative and comprehensive guide to the procedures of the Court of Arbitration for Sport (the CAS), the world’s pre-eminent specialist sports tribunal. It is invaluable to any practitioner appearing before CAS, and to anyone seeking to understand its jurisprudence and procedures.
The work is helpfully organised around the CAS Code itself, providing detailed explanation and analysis of each of its fundamental provisions and the most significant relevant case law. From jurisdiction, the scope of an appeal, time limits and costs to the content of pleadings such as the Statement of Appeal and Appeal Brief, it offers a highly practical guide to anyone involved in, or contemplating, proceedings before CAS.
In addition to chapters addressing the issues arising under each article, supported by copious references to CAS awards, the book contains practical annexes, tables and model documents to assist practitioners in preparing written submissions and hearings.
Alongside its thorough analysis of CAS jurisprudence, the work examines the Swiss Federal Tribunal’s supervisory jurisdiction over CAS awards.
As my friend and colleague Michael Beloff KC, who served as a CAS arbitrator from 1996 to 2023 and is one of its most distinguished former arbitrators, writes in his foreword to this edition: “The text’s exceptional usefulness was guaranteed by the identity of the co-authors.”
Dr Despina Mavromati is a Swiss and Greek lawyer, CAS arbitrator, member of the Appeals Chamber of the UEFA Club Financial Control Body, lecturer, writer and leading international expert on sports arbitration. Matthieu Reeb is a Swiss lawyer, writer and the longstanding Director General of CAS, with unrivalled institutional knowledge of its procedures and development.
I know from my own appearances before CAS how useful this book is. It is the one resource I always expect parties to cite and arbitrators to consult.
The second edition updates the work to reflect a decade of further jurisprudence and procedural development. It also adds new model documents and a chapter addressing the CAS ad hoc Rules and the Rules of the CAS Anti-Doping Division during the Olympic Games, giving practitioners valuable assistance both in drafting and in dealing with CAS’s most expedited procedures.
Coming from a common-law jurisdiction, many CAS procedures and aspects of its approach can initially appear foreign and, at times, bewildering in a way they may not to practitioners trained in civil-law systems. That is why this book has always been my starting point in any case before CAS. The new edition remains one of the most important legal texts on my shelf, or in my bag.
References
[1] ‘The Code of the Court of Arbitration for Sport: Commentary, Cases and Materials, Second Edition’, Wolters Kluwer, https://law-store.wolterskluwer.com/s/product/the-code-of-the-court-of-arbitration-for-sport-2e/01tPg00000BQkqdIAD?srsltid=AU7gw4W4NaNiYqqjknwR8Vfchp-b2XYmx6_ScO_B3RMC2zXvDGm4G3xq (last accessed 20 October 2026)
To continue reading or watching login or register here
Already a member? Sign in
Get access to all of the expert analysis and commentary at LawInSport including articles, webinars, conference videos and podcast transcripts. Find out more here.
Hits 196 Posted in Sports | Dispute Resolution | Articles
Related Articles
Written by
Nick De Marco KC
Nick De Marco KC is ranked as one of the top lawyers in sports law. He acts for international and domestic sports-governing bodies, federations, players, clubs, sponsors, broadcasters and agents across all sports in both commercial and regulatory disputes.
He is recognised as the foremost expert in football regulatory issues by all the leading UK legal directories. In addition to acting in numerous high-profile football disputes, he has a busy practice in many other international sports including boxing, motorsports, tennis, gymnastics, cricket, rugby and athletics.
He regularly lectures and writes on sports law, is author and editor of ‘Football and the Law’ (Bloomsbury 2018 & 2022) and ‘Challenging Sports Governing Bodies’ (Bloomsbury, 2016), contributor to ‘Lewis & Taylor: Sport and the Law’ (Bloomsbury, 2021) member of the Editorial Board of Law In Sport & Football Legal and the Advisory Board of the Middle East Sports Law Platform and host of The Sports Law Podcast.