explain in a short paragraph what can trigger spectator aggression in sport

http://www.popcenter.org/problems/spectator_violence/

Spectator aggression in sport can be triggered by various factors. One prominent trigger is the intense rivalry between teams or individuals, which can ignite passionate emotions among fans. Provocative actions or behaviors by players or coaches, such as excessive celebrations or controversial decisions, can also incite aggressive reactions from spectators. Additionally, alcohol consumption and the presence of a large, boisterous crowd can contribute to an atmosphere that fosters aggression. It is important to note that these triggers may vary depending on cultural and social factors, making it crucial to address these issues through measures such as strict security protocols, fan education, and promoting a positive sports culture.