Buckley, O'Leary and Murphy have been named on the replacements bench along with Munster colleague Mick O'Driscoll and it expected that they will all see action at some stage of the game. The Pumas will be led by Leinster out-half Felipe Contepomi.
Argentina: B Stortoni (Bristol); T De Vedia (Saracens), M Avramovic (Worcester Warriors), H Senillosa (Hindu), F Leonelli (Glasgow Warriors); F Contepomi (Leinster) capt, N Vergallo (Jockey Club Rosario); M Ayerza (Leicester Tigers), A Vernet Basualdo (Alumni), S Gonzalez Bonorino (Capitolina); P Bouza (Leeds), E Lozada (CASI); M Durand (Montpellier), JM Fernandez Lobbe (Sale Sharks), JM Leguizamon (London Irish). Replacements: M Cortese (Northampton Saints), JC Fernandez Miranda, H Agulla (both Hindu), G Fessia (Cordoba Athletic), J Stuart (both CASI), L Lopez Fleming (Edinburgh Gunners), P Cardinali (CSBJ Rugby).
Ireland: G Duffy; B Carney, A Trimble, K Lewis, T Bowe; P Wallace, I Boss; B Young, J Flannery, S Best capt; T Hogan, M O'Kelly; N Best, K Gleeson, J Heaslip. Replacements: B Jackman, T Buckley, M O'Driscoll, S Ferris, T O'Leary, G Murphy, B Murphy