Director of the ASSER International Sports Law Centre and senior adviser applied research of the T.M.C. Asser Institute for International Law, The Hague, The Netherlands. Lecturer, Department of Law and Criminology, at Edge Hill University, Ormskirk, United Kingdom. Research fellow at the ASSER International Sports Law Centre, Lecturer on Labour Law and Sport, University of Amsterdam, and general secretary of the newly established Dutch player� agents association Pro Agent. Senior fellow at the ASSER International Sports Law Centre.