Both teams enter this afternoon's clash with two wins apiece in the championship.
Wales are hoping to make this afternoon an uncomfortable day at the office for Ireland as the men in green attempt to keep their RBS 6 Nations title ambitions on track (KO 5pm).
Irish players have tasted a lot of success in Cardiff and don't arrive with the baggage of a lot of other sides who fear the Millennium Stadium factor.
Ireland clinched the Grand Slam in 2009 at the Millennium Stadium while the Munster players within the Irish squad have tasted double success in the Heineken Cup with victories in 2006 and 2008.
Wales forwards coach Robin McBryde is fully aware Matthew Rees and co have it all to do if they are to keep their own title ambitions alive. But with both teams having a similar record with two wins from three games, something will have to give this afternoon.
McBryde said: "I think it's fair to say both teams are struggling to find their top form, to really play at the best of their ability and have that accuracy under the pressure that international rugby brings.
"Hopefully, both teams will bring their best game to the table. We know how comfortable Ireland are coming to Cardiff, so hopefully we can make it as uncomfortable as possible. It will be about the small margins."
Meaanwhile Ireland fly-half Ronan O'Gara needs just two points to reach 1,000 at international level which would put him alongside just four other players - Neil Jenkins, Jonny Wilkinson, Dan Carter and Diego Dominguez.
Jenkins said: "What can you say about Ronan? He has done everything. He is a Munster legend, and now he needs just a couple of points for a 1,000.
"If I see him I am sure I will have a bit of banter with him, as he is getting close to my number (of points). He is a legend of the game and a legend of Irish rugby."
Wales: L Byrne (Ospreys); L Halfpenny (Cardiff Blues), J Roberts (Cardiff Blues), J Davies (Scarlets), S Williams (Ospreys); J Hook (Ospreys), M Phillips (Ospreys); P James (Ospreys), M Rees (Scarlets, capt), C Mitchell (Ospreys), B Davies (Cardiff Blues), A-W Jones (Ospreys), D Lydiate (Newport Gwent Dragons), S Warburton (Cardiff Blues), R Jones (Ospreys).
Replacements: R Hibbard (Ospreys), J Yapp (Cardiff Blues), J Thomas (Ospreys), R McCusker (Scarlets), D Peel (Sale Sharks), S Jones (Scarlets), M Stoddart (Scarlets).
Ireland: L Fitzgerald (Leinster); T Bowe (Ospreys), B O'Driscoll (Leinster, capt), G D'Arcy (Leinster), K Earls (Munster); R O'Gara (Munster), E Reddan (Leinster); C Healy (Leinster), R Best (Ulster), M Ross (Leinster), D O'Callaghan (Munster), P O'Connell (Munster), S O'Brien (Leinster), D Wallace (Munster), J Heaslip (Leinster).
Replacements: S Cronin (Connacht), T Court (Ulster), L Cullen (Leinster), D Leamy (Munster), P Stringer (Munster), J Sexton (Leinster), P Wallace (Ulster).
WRU International Skills Coach Jason Strange is a busy man, combining the new role with that of Wales Under 20 attack coach, Ebbw Vale head coach and continuing to teach at Ebbw Fawr Learning Community.
Warren Gatland and Sam Warburton look ahead to this week's crunch RBS 6 Nations tie against France, where the Wales skipper in particular is keen to make his mark, as Paris has proved a bleak place for him in the past.
Following their historic win over England, Wales Under 20 suffered a narrow, 36-34 loss to their Scottish counterparts last weekend, despite outscoring them by five tries to three. Watch the match highlights and reaction.
WRU TV go behind the scenes with the Wales squad as they put the final touches in place ahead of the clash against Scotland at Murrayfield. Follow the squad on their captain's run, the kickers visit to Murrayfield and Neil Jenkins' press conference