At Fluminense, Didi played between 1949 and 1956, the club for which he played the longest time without interruption, having played 298 matches and scored 91 goals, being one of the main responsible for winning the 1951 Carioca Championship, in addition to scoring the first goal in the history of Maracanã for the Carioca Selection in 1950, defending his childhood club, and leading the Brazil National team in winning the 1952 Panamerican Championship, disputed in Chile, in the first relevant achievement of the Brazil national team abroad, having played alongside Djalma Santos, Castilho, Waldo, Telê Santana, Orlando Pingo de Ouro, Altair and Pinheiro, among others.