My Pumas would be something like this:

15. Lucas González Amorosino

14. Gonzalo Camacho

13. Marcelo Bosch

12. Santiago Fernández

11. Martín Bustos Moyano

10. Juan Martín Hernández

9. Alfredo Lalanne

8. Juan Manuel Fernández Lobbe

7. Julio Farías Cabello

6. Genaro Fessia

5. Patricio Albacete

4. Mariano Galarza

3. Juan Figallo

2. Agustín Creevy

1. Marcos Ayerza

16. Eusebio Guiñazú

17. Rodrigo Roncero

18. Manuel Carizza

19. Juan Manuel Leguizamón

20. Agustín Figuerola

21. Nicolás Sánchez

22. Horacio Agulla

[23. Martín Scelzo]

I won't use very known players, so Google 'em...