Diego was promoted to Palestino first adult team in 2007 by the coach Luis Musrri, who made debut him against powerhouse team Universidad Católica in a 1–1 draw at Estadio Nacional for the Torneo Clausura.
Tello was promoted to La Serena's first team in the 2010 season, debuting on 9 May of that year against Palestino in a 3–0 away defeat at La Cisterna's Municipal Stadium.
Following the departure of Herrera, Reinoso played the first three games of the 2011 Apertura Tournament, until the arrival of the Argentine keeper Alejandro Sánchez against Palestino, Universidad Católica and Cobresal.