This book critically examines the important issues associated with aggression and violence in sport, including: * a review of current theory in the psychology of aggression * exploration of how players become acclimatised to physical violence * discussion of the psychological benefits of sanctioned and unsanctioned sport violence * examination of the moral and ethical dimensions of the debate * the psychological basis of spectator aggression * case studies from a wide variety of sports. This text is a must read for researchers and students within sport studies, psychology and sociology with an interest in human violence and aggressive behaviour.