Nelson David Cabrera Báez (born 22 April 1983 in Itauguá) is a Paraguayan football defender who plays for Club Bolivar in Bolivia.Cabrera started his career in Olimpia Asunción and moved to rivals Cerro Porteño in 2005.There he won two championships and was team captain in 2007 and 2008. He was then transferred to the CSD Colo Colo of Chile for a million dollars for the Copa Santander Libertadores.