On 1 July 2015, seven months after arriving, Delgado departed Estudiantes to sign for Defensa y Justicia.[5][6] He scored his first goal for Defensa in April 2016 during a 3–1 defeat to Atlético Tucumán.[2] After sixty-six appearances and one goal in his first four seasons with Defensa y Justicia, Delgado left the club on loan in February 2018 to join Categoría Primera A side Atlético Nacional.[7] Fourteen appearances in all competitions later, Delgado returned to Defensa y Justicia and subsequently made his 200th career appearance in the Primera División against Independiente on 24 August.[2]