Cardozo played for 24 de Junio and 3 de Febrero in Paraguay before moving to Club Nacional in 2005.
Cardozo arrived at Newell's in the second half of 2006 for a transfer fee of $1.2million after scoring 17 goals for Nacional in the Paraguayan first division Apertura tournament. At Newell's, he joined fellow Paraguayans Diego Gavilán, Santiago Salcedo and Justo Villar and became an immediate success hitting 11 goals in 16 games in the Apertura 2006 tournament. As a result of his good performances, Cardozo was voted the 2006 winner of the Paraguayan Footballer of the Year award.
The Paraguayan international started the 2007 season brilliantly. He had notched up 10 goals for Newell's and was crucial for the Argentine to escape the cellar of the Clausura and creating a likely chance of being involved in the Copa Libertadores next year. His recent success earned him a spot in the Paraguay national team that will participate in the 2007 Copa America.
On June 21st, 2007, Cardozo officially signed for Portuguese giants, SL Benfica, for an approximate amount of 9.1 million euros" - in Wikipedia
Já só falta um treinador!