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Perth - Australia coach Michael Cheika named his sixth different lock combination of the year on Thursday as he recalled Rob Simmons for the Rugby Championship Test against Argentina.
Simmons, the only change to the starting side from last week's much-needed win over South Africa, will partner Adam Coleman in the lineouts, with Kane Douglas making way.
Simmons, who will play his 64th Test, has not featured since the Wallabies were hammered 42-8 by the All Blacks in Sydney on August 20.
Douglas has been "a very good player for Australia over many years - and he just needs to find that groove," Cheika told reporters.
"There's a bit of a challenge now coming from the younger brigade of players who are coming through, and it's up to everyone to compete for their spot and improve their game.
"It's not like Kane was playing terribly. We are trying to get ourselves to a better standard."
Waratahs prop Tom Robertson could be in line to become the eighth Wallaby debutant this season after he was named on an extended bench.
"Everyone's always crying about us having no depth," Cheika said. "Well, we're taking the measures to create depth at the best level.
"It doesn't always work out. Sometimes it works out fantastically."
Melbourne Rebels' backrower Lopeti Timani was again named in the extended reserves list after being omitted from last week's Springbok Test, with the final bench to be named after Friday's training.
Winger Henry Speight was also named on the provisional bench and he could be set for his first Test since facing Uruguay at the 2015 Rugby World Cup.
Reece Hodge retains his spot on the wing after an impressive run-on debut last weekend.
Australia fought back from 14-3 down to beat South Africa 23-17 for their first win of the year, ending a demoralising sequence of six straight defeats.
After losing the World Cup final to New Zealand last October, Australia suffered three defeats to England and two big losses to the rampant All Blacks this year before finally breaking through.
Teams:
Australia
15 Israel Folau, 14 Dane Haylett-Petty, 13 Samu Kerevi, 12 Bernard Foley, 11 Reece Hodge, 10 Quade Cooper, 9 Will Genia, 8 David Pocock, 7 Michael Hooper, 6 Dean Mumm, 5 Adam Coleman, 4 Rob Simmons, 3 Sekope Kepu, 2 Stephen Moore (captain), 1 Scott Sio
Substitutes (one to be omitted): Tatafu Polota-Nau, James Slipper, Tom Robertson, Rory Arnold, Lopeti Timani, Sean McMahon, Nick Phipps, Tevita Kuridrani, Henry Speight
Argentina
15 Joaquín Tuculet, 14 Santiago Cordero, 13 Matías Moroni, 12 Santiago González Iglesias, 11 Lucas González Amorosino, 10 Nicolás Sánchez, 9 Tomás Cubelli, 8 Facundo Isa, 7 Juan Manuel Leguizamon, 6 Pablo Matera, 5 Matías Alemanno, 4 Javier Ortega Desio, 3 Ramiro Herrera, 2 Agustín Creevy (captain), 1 Nahuel Tetaz Chaparro
Substitutes: 16 Julian Montoya, 17 Lucas Noguera, 18 Enrique Pieretto, 19 Marcos Kremer, 20 Leonardo Senatore, 21 Martín Landajo, 22 Gabriel Ascarate, 23 Matías Orlando
