Mark Turner is Senior Lecturer at Manchester Metropolitan University, UK, and the author of The Safe Standing Movement in Football: Fan Networks, Tactics and Mobilizations published by Routledge in 2023. He is specifically interested in the sociology of generations, temporality, collective action, and social networks. His work cross-pollinates ideas from sociology, political science, and social movement studies, and has been published in: The British Journal of Sociology; Sociology; Sociology Compass; Sociological Research Online; The Sociological Review; the International Journal of Sport Policy and Politics; and the International Review for the Sociology of Sport.

Jan Andre Lee Ludvigsen is Senior Lecturer in International Relations and Politics with Sociology at Liverpool John Moores University, UK. He has published widely on security and supporter cultures in European football contexts and sport mega-events.