The important theme “What is Sports Law?” was the topic of the international Conference on “The Concept of Lex Sportiva Revisited”, which took place in Jakarta in late 2010. Academics and practitioners are still in debate to agree on this concept as is evident in this book. This book not only contains the worked out contributions of this Conference, but also other related chapters on the subject. It produces a reassessment of the content of Sports Law and its terminology keeping a close eye on the current literature. The book appears in the ASSER International Sports Law Series, under the editorship of Prof. Dr. Robert Siekmann, Dr. Janwillem Soek and Marco van der Harst LL.M.