Adrualdo Barroso da Silva

Adrualdo Barroso da Silva (born 4 May 1934 died 21 August 2026), better known as Duca, was a Brazilian former professional footballer who played as a forward.

Career Revealed by Flamengo's youth sectors, Duca played for the club from 1954 to 1958, participating in the conquest of three state titles, making 119 appearances and scoring 42 goals. He later played for Real Zaragoza, after performing prominently in the 1958 Teresa Herrera Trophy with Flamengo, where he was champion of the Inter Cities Fairs Cup and the Generalissimo Cup in the 1963–64 season. He also played one last season for Mallorca.

Honours Flamengo Campeonato Carioca: 1953, 1954, 1955

Real Zaragoza Copa del Rey: 1963–64 Inter-Cities Fairs Cup: 1963–64