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2026 edition

Ambush Marketing in Football Competitions: Where Should Brand Protection End?

By

Guy Schlaefli and Rodrigo Arias Grillo

LLM 2026 O REI Sports Law Institute & O REI Sports Law Institute Co-founder and Managing Director

Published

31 August 2026

Sponsorship has become one of the principal revenue streams of football mega-events, and its value rests almost entirely on the promise of exclusivity. This article argues that ambush marketing, the practice of associating a brand with an event without paying for the privilege, sits at the intersection of three disciplines too often collapsed into one: finance (how much sponsorship value genuinely depends on exclusivity), commercial and legal practice (where contractual promises to sponsors stop being enforceable against third parties), and sports governance (the legitimacy of a private organiser writing and policing its own rules over public space). The authors map a typology running from harmless "intrusion" ambushing to clearly unlawful trademark infringement, with a contested grey zone of indirect, non-infringing campaigns in between, and show that existing legal tools were never designed to protect sponsorship exclusivity as such, leaving the gap filled unevenly across common law and civil law jurisdictions. Measures such as FIFA and IOC "clean zones" are singled out as the clearest example of governance overreach, arguably restricting third-party commercial freedom and raising antitrust-sensitive conduct (Articles 101/102 TFEU, the Sherman Act) beyond what the law independently supports.

The article concludes that football should not receive special legal insulation from ordinary competition, that escalating enforcement is driven more by risk-averse sponsor expectations than by proven financial harm, and that heavy-handed enforcement can backfire by generating free publicity for the ambusher. It closes with targeted recommendations across the three lenses identified: financial (quantify real impact, diversify revenue away from exclusivity dependence), commercial/legal (apply proportionality tests, respect privity of contract, monitor antitrust exposure), and sports governance (treat brand protection as accountable self-regulation, consult stakeholders, shift from punitive enforcement to education).

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0. Article Brand Protection - Guy Schlaefli and Rodrigo Arias 2026.pdf

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