It's a little over a year since Warren Gatland's Wales left Argentina with a first series win in South America since 1999.
While it helped pave the way for an autumn international clean sweep and a 2019 Six Nations Grand Slam, for the Pumas it has given them new found confidence heading into the autumn Rugby World Cup in Japan.
From the rubble of Wales' wrecking ball tour to Argentina in the summer of 2018 came the appointment of former hooker Mario Ledesma to replace coach Daniel Hourcade, who spent close on five years at the helm of the Pumas.
Ledesma in turn was just 10 months into his role as head coach of the Jaguares. That opening gave former international No.10 Gonzalo Quesada the job of overseeing the Super Rugby side.
And in doing so, Wales have played an unwitting part in helping write one the success stories in southern hemisphere rugby in 2019.
For the Jaguares have not only sharpened their claws for meeting the Crusaders in the 2019 Super Rugby final next week but sent out a World Cup warning to the likes of Wales and England.
The Jaguares are essentially the Pumas under another big cat name, and in reaching the first Super Rugby final in their history, have sent a two-fingered message to those calling for their expulsion from the competition in the last few months.
It was as emphatic an announcement to the detractors as the semi-final win itself as Matias Orlando scored two tries and Joaquin Diaz Bonilla kicked 14 points in their 39-7 rout of the Australian-based Brumbies in Buenos Aires.
When the Jaguares were brought into Super Rugby in 2016, it was to help stem the tide of Argentine players leaving South America for lucrative contracts in Europe. That in essence is a mission accomplished as invariably their 23-man squads are all players capped at Test level.
But the success in keeping the player drain now down to a trickle, has led to the criticism a national team is competing against sides, who are no more than provinces.
Success on the pitch often leads to accusations off it.
Those backing the Jaguares playing Super Rugby point to no murmurings of discontent when their first three seasons in the competition saw them finish 13th in 2016, 10th in '17 and seventh a year ago, making the play-offs for the first time.
Their 11 wins equalled that of the Crusaders this season and it's only fitting the top two teams in the competition should emerge from the play-offs to contest the final in Christchurch next weekend.
"This is a dream come true," said Jaguares and Argentina lock Guido Petti. "We have come a long way since a disappointing first season not too long ago.
"Each year we have improved and now we are in the final. We are looking forward to playing the Crusaders.
"It would have been wonderful to have the final here at our home ground in front of such passionate supporters, but we'll not fear travelling to New Zealand."
With 2019 being World Cup year, the Jaguares will have a number of high-profile departures for next season.
Pumas captain Pablo Matera will head off to Stade Francais, Santiago Garcia Botta and Martin Landajo are both bound for the Gallagher Premiership with Harlequins as is Tomas Lavanini, who will join Leicester Tigers.
They will leave gaping holes in the Jaguares ranks. Shrewd coach Gonzalo Quesada has been doing his level best while extracting every ounce of effort from his players this season, to expose the next generation of Pumas stars to Super Rugby.
No matter what, the Jaguares have been the story of the season from a side that won four of 15 matches three seasons ago to reaching the final against the star-studded Crusaders.
And there lurks potential World Cup danger for the likes of Wales and England, if they are to make the latter stages of the World Cup.
Eddie Jones' England are drawn in Pool D with the Pumas, France, USA and Tonga and would have been heavily fancied to progress through as winners given Argentina's lamentable form against Wales last summer.
The winners of Pool D play the runners-up in Pool C in the quarter-finals with that likely to be either Wales or the Wallabies, depending on their clash in the Tokyo Stadium on September 29.
But the success of the Jaguares, with a national team playing Super Rugby and reaching a final, in the lead-up to Japan, has thrown a Puma among the pigeons and could give Wales and England plenty to ponder in the land of the rising sun.
Argentina are a very different team to the one Wales swatted away last summer, with the Jaguares players full of confidence and Ledesma overseeing victories over South Africa and Australia following his appointment in last year's Rugby Championship.
