 Nevertheless, he was demotivated by his teammates, like captain Marcelo Espina, complemented by the misbehavior outside the field.After falling out of Colo-Colo's first team figures, Valdivia was loaned to fellow Chilean Primera División side Universidad de Concepción.He made his professional debut for Concepción on 16 March 2003, coming on as a second-half substitute for Pablo Abdala in a 2–1 Primera División away loss against Cobresal.