Our expertise

Sports law

Since 1990, "DUPONT-HISSEL" - a pioneer in this field - has developed a unique experience in international sports law, particularly in matters relating to European law.

European law

Jean-Louis DUPONT and Martin HISSEL are also regularly involved in European law and international commercial arbitration cases, outside the professional sports sector.

Whatever your profile, "DUPONT-HISSEL" is happy to assist you. Do not hesitate to contact us.

News and recent cases

Masterclass at the “Universidad Europea de Madrid” (“Escuela Universitaria Real Madrid”).

On 14 May 2024, Jean-Louis DUPONT and Martin HISSEL gave a Masterclass on ‘EU Law and Sport: when confrontation generates innovation’, as part of the Master in International Sports Law at the Escuela Universitaria Real Madrid.

CJUE: Opinion of First Advocate General SZPUNAR in the case of Lassana DIARRA/FIFPRO/UNFP v FIFA and URBSFA - Case C-650/22

The First Advocate General of the CJEU, Mr SZPUNAR, delivered his Opinion in this case on 30 April.

Lassana DIARRA v FIFA before the CJEU

Case 650/22 is currently pending before the CJEU