This work deals with the development of football fans under the influence of the media. Approaching, what factors affect the behavior of fans at the stadium and beyond and what are the consequences of their actions. Thesis is based on the methods of investigation of processes and interactions. Basic sources of information in addition to the observation of the author and literature are interviews with personalities from the football society. These include sports journalists, club officials and fans themselves. The work is divided into two parts. The first provides a theoretical basis, which describes the development of football fans after the Velvet Revolution, the non-media effects on behavior and the possible consequences of their interact...