What retired Argentine footballer is nicknamed "Cuchu" and also has an older brother who is a retired Argentine footballer?
Nicolás Cambiasso: Nicolás Cambiasso (born March 2, 1978) is a retired Argentine football goalkeeper who last played for All Boys in the Argentine Primera División. Nicolás Cambiasso:  He is elder brother of Esteban Cambiasso. Esteban Cambiasso: Esteban Matías Cambiasso Deleau (born 18 August 1980), nicknamed ""Cuchu"", is a retired Argentine footballer.
Esteban Cambiasso