Ireland captain Paul O'Connell is expecting his side to face an "incredibly difficult" challenge when they take on Wales in Cardiff later this month.
Next up for Ireland is a tricky-looking trip to face a Wales side who have recovered from their opening-game defeat against England to remain in contention for the famous trophy.
"It's probably going to be our hardest day of the championship, away from home is obviously harder," O'Connell told BBC Sport. "They've put themselves in with a chance with a big win over in Paris so it's going to be incredibly difficult."
Ireland have now won each of their last 10 games.