Ross, highly regarded for his set-piece attributes, is looking forward to the clash in Cardiff.
"You have the classic old Pontypool frontrow," Ross told the Irish Times.
"Welsh packs always had a history of being tough and abrasive. I've played against a few Welsh teams and they haven't lost those characteristics. If they're on top of you, you'll know about it.
"You can't be in awe of them. You'd respect them. Paul James is a very, very good scrummager. He probably shades Gethin (Jenkins) a little in that regard. Whereas Gethin has the all-round game attributes, Paul's scrummaging is what I'll principally focus on. He's not an easy customer."
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