We are raiding the Audio Long Reads archives and bringing you some classic pieces from years past, with new introductions from the authors. This week, from 2015: Luzira was once the most notorious prison in Uganda. Now it’s home to what is surely the world’s most elaborate prison football league – and a model for the transformative power of the beautiful game. By David Goldblatt. Help support our independent journalism at theguardian.com/longreadpod