There are not many strong teams engaged in relationships in history. Generally, midstream teams form alliances for the benefit. For example, Shanghai, Tianjin and Qingdao once had the Blue Sky Cup. Of course, at that time, both Shanghai and Tianjin belonged to the upper and middle reaches, and Qingdao also won the FA Cup, which was basically a model of the relationship between the upper and middle reaches. Between strong teams, Shanghai is famous for its hegemony in history, but the opposition between the fans of both sides is not serious. Evergrande only rose in recent years, and its fans were only trained. Guangdong football was in decline for a long time before Evergrande, so foreign fans did not have too serious opposition to Guangdong football and fans. Domestic fans are in serious opposition, mainly in Beijing, Tianjin, Jinan and Qingdao, with obvious regionality.