Ireland loosehead prop Jack McGrath says his front-row colleagues will have their work cut out against Romania in their second game on Sunday.
The Leinster player, who started against Canada in their pool opener, knows their next pool opponents will be tough up front and he is ready for a test.
"That's their number one go-to thing. With (Mihaita) Lazar, (Horatiu) Pungea and (Paulica) Ion, guys all playing it the French league, they're pretty experienced. So for us we have to be switched on and we had a good meeting earlier on and we've clued in and we’re going to have a good session tomorrow," he said.
"A lot of the guys ply their trade in the French league so they're used to coming up against guys that are equally as big and strong scrummagers. It's like the Georgians, it's their make-up. They're big men and they take massive pride in their scrum and I just suppose it's a thing we have to be wary of this weekend."
"It's great being able to play against these guys and having said you've played against these quality players, to test your own ability against these old-school guys and see if you're up to their old tricks."
On his own side's strength at scrum-time, McGrath admitted it had been an area of focus for them over recent seasons.
"We're trying to hone it into a weapon now and we've been working on it for the last two-and-a-half years. It's great to have the experience of Besty (Rory Best) and Rossy (Mike Ross), and even Cian (Healy) coming back in, and for myself to give Taghe (Furlong) and other young guys to give some pointers its great," he said.
"I suppose it is an area that we're confident that’s going well but I suppose one afternoon getting shoved back and it can all go down the toilet. So it's somewhere where you really have to be switched on."
Romania, who play France this Wednesday, only have four days rest before taking on Ireland, with McGrath adding: "I suppose it's just the way the ranking and the seeding has gone and there's not a lot we can do about that. All we can do is give them the respect they deserve and turn up and give them a good game … I didn't make the fixture list."