Ahead of the Hong Kong football team’s first match at the newly minted 50,000-seat main stadium in Kai Tak Sports Park against India in an AFC Asian Cup qualifier on June 10, some fans are gearing up to support the home squad with rapturous cheering. One such fan is loudspeaker-wielding Chester Cheung, who for years led the chanting of supporters whenever the Hong Kong team played. He is part of a dedicated fan group, Hong Kong Chi Sin Lo, a Cantonese expression that translates to “crazy...