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Associate - Alvaro Martínez San Segundo

Álvaro Martínez San Segundo has been a lawyer at Senn Ferrero since 2018. Before joining the Firm, he interned in all Spanish Big 3 law firms and one Magic Circle, and trained during one year in the M&A department of a leading international law firm.

6+ PQE lawyer specialised in contractual and contentious matters, with a particular focus on the sports and entertainment sectors. Álvaro’s work focuses mainly on recurring advice on corporate matters and investment opportunities, financing transactions, drafting and negotiating commercial agreements for both athletes and celebrities, as well as on the resolution of disputes of all kinds between clubs, associations, agents, athletes, artists, and/or any other entity involved in these sectors.

In relation to the latter, Álvaro has already intervened in many proceedings both at national level (before labour, administrative, civil and commercial courts, as well as in arbitrations before the RFEF Internal Bodies, and LALIGA’s Football Arbitral Tribunal), and at international level (before the different bodies of FIFA, the Court of Arbitration for Sports based in Lausanne, or the International Chamber of Commerce). In addition to the above, Álvaro regularly acts as ad hoc clerk of one of the arbitrators of the Basketball Arbitral Tribunal (considered by the Chambers & Partners directory as one of the Most In Demand Arbitrators in Spain), having participated in nearly 100 cases before said tribunal so far.

More recently, a large part of Álvaro’s activity is related to recurrent and bespoke advice to top level football clubs, with a particular focus on the sports area, ranging from the contracting and transfer of players and coaches at both national and international level, to the resolution of conflictive situations within this area.

Álvaro has also collaborated in various specialised publications and he has participated as a speaker in courses and master’s degrees mainly related to football law.

He is admitted to the Bar in Spain (Madrid Bar Association) and he is also a Solicitor of England and Wales (having spent time on secondment at one of the most renowned English law firms in the sports sector while preparing for his qualification there).

Sports Law
International Arbitration
Contract Law
  • Law Graduate by Universidad Autónoma de Madrid (having spent one year of his studies at the University of Cambridge)
  • Master’s degree for Admission to the Bar by Universidad Carlos III de Madrid
  • Executive programme in Sports Business Administration by Centro de Estudios Garrigues and LALIGA.


  • Spanish
  • Galician
  • English
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