Argentina coach Marcello Loffreda says he has spotted a chink in Ireland's armoury ahead of their Pool A rugby World Cup showdown on October 26th.
Loffreda believes the two tries Eddie O'Sullivan's side conceded in the win over Romania at the weekend hints at defensive frailty.
"We will have to study that area quite hard because they appear to be vulnerable in certain areas," he said.
"They made some mistakes in defence and that gives us hope for when we play them. We know that match will have a huge impact on both teams and we will need to be at our best.
"Like us, Ireland are a very solid team who have been together for quite a while now. They all know what the game plan is and they are very effective in the line-outs," Loffreda said.
Argentina, who lost to Australia in their opening pool game, play Namibia in Gosford tomorrow.
PA