This article takes a firm departure in the thesis of the juridification of sport. By initially presenting two cases that highlight the logics and problems in the interaction between sport and the law, we receive a fertile soil for analysing the rationalization processes, as well as the trivialization processes, that emerge in light of the commercialization of sport, the ‘eventification’ of society and when, consequently, the ‘law goes pop’. The analysis and the reflections are completed by mixing the thesis of Huizinga’s cultural analysis of play and sport, with Sherwin’s analysis of the trivialization of law. Interestingly, we find, in addition to the prominent rationalization process, tendencies of a comparable ‘trivialization process’.