Violence in Sports Rivalry Dynamics Rivalries Event Attendance Public Perception Supporter Groups Public Reactions Celebratory Acts Social Media Influence Community Engagement Community Impact Rivalry Culture Rivalry Team Loyalty Political Expression Political Expression in Sports College Sports Traditions Event Participation Respect for Players Discrimination in Sports NFL Fans Rivalry Behavior Celebration and Rivalry Chants and Songs Alcohol in Sports Debate Collectibles Racism in Sports Social Media Reactions Celebration Incidents Aggression in Sports Controversies Controversy Pyrotechnics Public Perception of Fans Discriminatory Practices Soccer Fandom Passion for Teams Booing Player Criticism Tribalism Ticket Sales Strategy Fan Reactions Security breaches at sports events Fan passion for national teams Fan incidents at sports events Fan safety at sports events Booing and Jeering Violence in Sports Culture Community Events Field Storming Collecting Homophobia in Sports