Argentina coach Michael Cheika has made three changes to his starting line-up for Saturday's Rugby Championship test against the All Blacks - and has selected Dragons RFC scrum half Gonzalo Bertanou to start the huge fixture (kick-off 8.45am UK).
Joel Sclavi moves up from the bench to replace Gomez Kodela at tighthead prop and Lucio Cinti, nominally a centre, will start on the left wing in place of Imhoff in Christchurch.
The third change sees Matias Orlando come in at inside centre to partner Matias Moroni in place of Jeronimo de la Fuente, who pulled a hamstring against the Wallabies.
On the bench, Santiago Socino backs up skipper Julian Montoya at hooker and props Mayco Vivas and Eduardo Bello have come in to cover the the front row.
Argentina: Juan Cruz Mallia, Emiliano Boffelli, Matias Moroni, Matias Orlando, Lucio Cinti, Santiago Carreras, Gonzalo Bertranou, Pablo Matera, Marcos Kremer, Juan Martin Gonzalez, Tomas Lavanini, Matias Alemanno, Joel Sclavi, Julian Montoya (c), Thomas Gallo
Replacements: Santiago Socino, Mayco Vivas, Eduardo Bello, Guido Petti, Santiago Grondona, Tomas Cubeli, Tomas Albornoz, Santiago Cordero.