The 28-year-old is a versatile defender who is likely to be used from the substitute's bench in Germany. His preferred position is left-back but his ability to play in several roles has won him a place in the squad. The 28-year-old started his club career with Club Guarani before moving to Cerro Porteno. Nunez has spent the last few seasons in Argentina playing for Banfield, Arsenal de Sarandi and Racing Club and is currently with Estudiantes.