Ireland coach Eddie O'Sullivan has probably seen enough of Argentina to have nagging worries about his team's match with the Pumas on Sunday.
But Argentina coach Marcelo Loffreda will go into the crunch Pool A game with oodles of confidence after a virtual second-string side took Romania apart at the Aussie Stadium in Sydney on Wednesday night.
True, Romania may have an abundance of heart, but skills are in short supply, and they are now left fighting with Namibia to stave off the wooden spoon.
Nevertheless, Argentina were in complete control in every department.
 Ireland could find problems against the Puma forwards |
Consider that Felipe Contepomi, Gonzalo Quesada, Agustin Pichot, Rolando Martin and Robert Grau were only spectators on the touchline, then it puts Ireland's job into true perspective.
O'Sullivan would also have been a little disappointed by the fact Romania physically shattered Ireland 11 days previously, but rarely sapped the energy of Argentina.
The Pumas are a confidence team and, after their stifled performance against Australia in the opening game, they are now moving sweetly into peak form.
You could see the raw, brute strength of their pack, a power that was well organised and channelled as they romped home to a 50-3 victory.
Then there was the neat running angles of their three-quarters and the little teasing kicks that will stop any advancing defensive line dead in their tracks.
Like Ireland, the Pumas have been sharpening their claws for Sunday's tie, and they will relish the chance of taking Ireland's scalp again.
They were outright no-hoppers when they defeated Ireland 28-24 at the tournament in Lens four years ago. They are not fancied by many now either, but they still demand respect, a lot of it. They will just adore going into the game as underdogs.
They would not have been enamoured, though, at having to face Ireland three days after their Romanian outing.
That is particularly galling since Ireland will have had a full seven days to recover from their exertions against Namibia.
Pichot, Quesada and Martin did come on for the final quarter but, by then, the damage was done as the Pumas had already grabbed their bonus point and were leading 36-3 in front of a fairly passionate and light-hearted audience.
They ran in seven tries in total, although Ireland still remain top of Pool A by virtue of scoring more points against Namibia.
That could change come Sunday after what is expected to be the most closely fought game following England's victory over South Africa.
MMIX
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If both teams play to their potential the Pumas will lose by 20 points
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