The purpose of the conducted research was to analyze the processual dimension of the transformations of a disabled person’s life which take place under the influence of experiences related to practicing sport. Therefore, the article attempts to discuss the issues related to the influence of sport institutions responsible for the organization of sport practiced by physically disabled individuals in their care. In the article, I try to prove the similarity of the sport structure with the educational system structure where, apart from the strictly educational functions, there are also socialization processes taking place, diverse in terms of measures and results. The basis for the realization of the purpose mentioned above was the personal experiences of the researched individuals. Hence, the research exploits qualitative data collected during participant observations and in-depth free interviews conducted among the disabled practicing sports. Analysis and interpretation of the research material was performed in accordance with the procedures of grounded theory. The article has been prepared as a consequence of research carried out between 2012 and 2015 among the society of the disabled who practice professional sports. The studies are related to the characteristics of a sports career of the disabled, which, regarding its specificity, is deeply rooted in institutionalized initiation practices regarding inclusion, continuance and the maintenance of the main action, i.e., practicing sport.