THE rollercoaster year of Rob Simmons continued on Thursday when he was named to start in the second row for the Wallabies as they prepare to take on Argentina in Canberra.

Wallabies coach Michael Cheika made just the one change to his starting XV ahead the clash with Los Pumas at GIO Stadium on Saturday night.

The match will be Simmons’ 75th Test for the Wallabies and he will team up with the experienced Adam Coleman, with Rory Arnold out of the match day 23.

Stephen Moore, who missed the Test against South Africa in Perth last weekend to be at the birth of his third child, has missed out on the match day 23 with selectors opting to use Tatafu Polota-Nau in the starting side and Jordan Uelese off the bench.

Reds lock Izack Rodda will get the chance for just his second Test cap if called upon.

Saturday night’s clash could also mark the debut for Rugby League convert Marika Koroibete, after he was named amongst the reserves.

The Rebels winger is set become Wallaby No. 913, and the 10th Wallabies debutant of 2017, after initially joining the squad for the 2016 Spring Tour and this year’s June Series.

Seven players are set to be released for Round Three of the NRC with Adam Korczyk (Brisbane City), Lukhan Tui (Brisbane City), Joe Powell (Canberra Vikings), Rory Arnold (Canberra Vikings), Billy Meakes (Perth Spirit), Curtis Rona (Perth Spirit) and Lopeti Timani (Melbourne Rising) to be available after completing their Wallabies duties.

Australia are currently third on the Rugby Championship standings, following three points from the opening three games (one draw, two defeats) while Argentina are yet to notch a point.

The Wallabies have won their last four games against the Pumas while Argentina have only beaten Australia once Down Under, after an 18-3 victory at Ballymore Stadium in Brisbane in 1983.

The two sides last met in October last year at Twickenham Stadium with Australia holding on for a 33-21 victory thanks to two tries from centre Samu Kerevi.

THE SQUAD

1. Scott Sio (35 Tests)
2. Tatafu Polota-Nau (74 Tests)
3. Sekope Kepu (83 Tests)
4. Rob Simmons (74 Tests)
5. Adam Coleman (14 Tests)
6. Ned Hanigan (6 Tests)
7. Michael Hooper (c) (71 Tests)
8. Sean McMahon (18 Tests)
9. Will Genia (vc) (81 Tests)
10. Bernard Foley (vc) (48 Tests)
11. Reece Hodge (16 Tests)
12. Kurtley Beale (63 Tests)
13. Tevita Kuridrani (50 Tests)
14. Henry Speight (15 Tests)
15. Israel Folau (58 Tests)

Reserves
16. Jordan Uelese (1 Test)
17. Tom Robertson (12 Tests)
18. Allan Alaalatoa (15 Tests)
19. Izack Rodda (1 Test)
20. Jack Dempsey (2 Tests)
21. Nick Phipps (54 Tests)
22. Samu Kerevi (10 Tests)
23. Marika Koroibete*
*denotes uncapped