If the Pumas spring some surprises over the next few years of the Rugby Championship, significant credit should go to Las Pampas.
No, not the thousands of kilometres of grasslands in inland Argentina, where cattle ranches abound in the agricultural centre of the nation.
Instead Las Pampas is the semi-professional, home-grown outfit that has played the last two seasons of the Vodacom Cup in South Africa, the second-tier competition to the Currie Cup and which is played for by that country's Super Rugby development teams.
Last year, they went unbeaten, trumping the Bulls development team in the final in a display of verve and flair. They captured the imagination back home but their impact goes well beyond national pride.
For the first time, there is now a genuine, structured step on the pathway from Argentina's amateur leagues to the professional environment.