RIO DE JANEIRO (Interstat) — Fluminense defeated archrival Flamengo 2-1 on Wednesday in a Carioca Série A match at Estadio Jornalista Mário Filho. Luciano Acosta opened the scoring for Fluminense in the 25th minute, with Kevin Serna doubling the lead just eight minutes later. The result was an upset, as statistical models heavily favored Flamengo to win. The match was a physical affair, featuring five yellow cards. With the victory, Fluminense begins its season with a win, while Flamengo starts with a loss.