Diego Barreto

Barreto started his career with the club Cerro Porteño, where he was trained by Modesto Sandoval and was teammates with Aldo Bobadilla. He developed in the youth divisions of Cerro. Barreto was part of the silver medal-winning Paraguay national team in the 2004 Olympics. Paraguay booked a quarter-final place with two victories in the qualifying group. The squad finished first, and then beat South Korea in the quarter-finals and Iraq in the semi-finals, before losing to Argentina in the final. In 2007, Barreto had a spell with Newell's Old Boys in Argentina, but failed to break into the first team, returning to Paraguay in January 2008. However, he signed again for the Paraguayan team in July 2008. He also holds an Italian passport. In 2008, he spent a month with FC Locarno. He played in only one match, allowing four goals in the derby against FC Lugano. Barreto since returned to Cerro Porteño. In July 2015 after not having his contract renewed Barreto moved to Cerro´s archrivals Club Olimpia.

On 4 August, before the Summer Olympics began, he played in a preparation game against the Portugal of Cristiano Ronaldo in the city of Algarve, resulting in a 5–0 defeat.

Cerro Porteño

Paraguayan Primera División: 2004, 2005, 2012 Apertura Paraguay U-23

Silver Medal at the Summer Olympics: 2004 Athens