Osorno, born on March 16, 1979, made his debut on January 11, 1997, in a game against Tecos UAG; during this time, he was one of several players in the Atlas Youth System to join the Mexico National Team.
Daniel Osorno Calvillo (born 16 March 1979) is a retired Mexican football player. Osorno made his debut on 11 January 1997 in a game against Tecos UAG and quickly became one of the main goal scorers for Atlas. During this time, he was one of several players in the Atlas youth system to eventually join the Mexico national team, along with teammates such as Rafael Marquez, Juan Pablo Rodriguez, and Miguel Zepeda. 
