Cape Town - Tomas Lavanini replaces Matias Alemanno at lock in the only change to the Argentina starting line-up for a Rugby Championship return match against South Africa in Mendoza on Saturday.
The Pumas lost 34-21 to the Springboks last Saturday in the opening round of the southern hemisphere championship.
Alemanno replaces Lavanini on the bench, where there are three other changes with centre Jeronimo de la Fuente, scrumhalf Tomas Cubelli and hooker Facundo Bosch promoted.
Utility back Santiago Gonzalez Iglesias, hooker Diego Fortuny and veteran scrumhalf Martin Landajo drop out of the matchday 23 for the game at Estadio Malvinas Argentinas.
Cubelli is back in the squad after a long absence having been injured against New Zealand in the Rugby Championship last year.
The Pumas will be seeking only a second home victory over the Springboks after one win, one draw and 11 losses in the South American nation since they first met there 25 years ago.
Hooker Agustin Creevy skippers a side that lost twice to Wales and once to Scotland at home during June before coming off second best to South Africa in Durban.
The match in the Estadio Malvinas Argentina starts at 21:10 (SA time).
15 Emiliano Boffelli, 14 Bautista Delguy, 13 Matias Moroni, 12 Bautista Ezcurra, 11 Ramiro Moyano, 10 Nicolas Sanchez, 9 Gonzalo Bertranou, 8 Javier Ortega Desio, 7 Marcos Kremer, 6 Pablo Matera, 5 Tomas Lavanini, 4 Guido Petti, 3 Juan Figallo, 2 Agustin Creevy (captain), 1 Nahuel Tetaz Chaparro.
Substitutes: 16 Facundo Bosch, 17 Santiago Garcia Botta, 18 Santiago Medrano, 19 Matias Alemanno, 20 Tomas Lezana, 21, Tomas Cubelli, 22 Jeronimo De La Fuente, 23 Juan Cruz Mallia
15 Willie le Roux, 14 Makazole Mapimpi, 13 Lukhanyo Am, 12 Andre Esterhuizen, 11 Aphiwe Dyantyi, 10 Handre Pollard, 9 Faf de Klerk, 8 Warren Whiteley, 7 Siya Kolisi (captain), 6 Francois Louw, 5 Franco Mostert, 4 Eben Etzebeth, 3 Frans Malherbe, 2 Malcolm Marx, 1 Tendai Mtawarira
Substitutes: 16 Bongi Mbonambi, 17 Steven Kitshoff, 18 Wilco Louw, 19 RG Snyman, 20 Pieter-Steph du Toit, 21 Embrose Papier, 22 Lionel Mapoe, 23 Damian Willemse