Davi Ferreira (15 May 1926 â 16 July 2017), better known as Duque, was a Brazilian professional footballer and manager, who played as a defender.
Formed in Cruzeiro's youth categories, Duque played as a defender. He made 127 appearances for Cruzeiro from 1946 to 1952, in addition to playing for Vasco da Gama, Fluminense and Canto do Rio.
As coach Duque was responsible for commanding what is considered the best Náutico team in history, four times state champion and runner-up in the Taça Brasil. He was also champion two times with Santa Cruz, as well as Campeonato Carioca champion in 1973 with Fluminense. In 1976 he was runner-up again, this time with Corinthians in the Brazilian Championship. In 1981 he won the first edition of Campeonato Brasileiro Série C, the Taça de Bronze, with Olaria, in addition to winning the Bahrain league with Muharraq SC.
Duque died at the age of 91 on 16 July 2017 in the city of Rio de Janeiro.