Resumen
Professional football (soccer) in Europe has become avery powerful entertainment industry from an economical pointof view. This article is particularly interested in the privilegedrelationship between football fans and their favorite professionalclub, while the best players do not hesitate to change clubs whenthey can take advantage of better financial conditions. A researchprogram is proposed for future works. It comprises two researchpropositions: (1) fan attachment to a professional football club isbased on an identity process involving collective assimilation ofvalues, myths and symbols; and (2) professional football clubsbenefit from and even encourage the nomadism of their players,and build their image on elements independent from humancapital.