The Wallabies have been forced into a late change as backrower Jake Schatz had to withdraw from the squad and has been replaced on the bench by his Reds teammate Liam Gill.
The twenty-three-year old backrower Schatz showed signs of significant swelling to his right knee, which initially flared up late last night following the team's Captain's Run.
Schatz will undergo scans on his knee in Brisbane this morning. His withdrawal will see flanker Liam Gill return to coach Ewen McKenzie's matchday squad for tonight's crucial Nelson Mandela Challenge Plate clash against the Springboks.
Jake has come very close to debuting for Australia on a number of occasions now so on a personal level we are all extremely disappointed to rule him out on matchday,” McKenzie said. “However, he is a resilient character and will be back very soon.
“Liam has been involved in our opening two Tests so will slot straight back into what we are trying to achieve against the Springboks.”
Schatz's withdrawal is the second change to the original team named by McKenzie for this match as captain Jame Horwill also withdrew due to injury.
Meanwhile, McKenzie has also confirmed that Waratahs lock Sitaleki Timani and backrower Dave Dennis will join the Australian squad in Perth tomorrow ahead of the Wallabies clash against Argentina on Saturday 14 September.
15 Israel Folau, 14 Nick Cummins, 13 Adam-Ashley Cooper, 12 Christian Lealiifano, 11 James O'Connor, 10 Quade Cooper, 9 Will Genia, 8 Ben Mowen, 7 Michael Hooper, 6 Scott Fardy, 5 James Horwill (captain), 4 Rob Simmons, 3 Sekope Kepu, 2 Stephen Moore, 1 James Slipper
Replacements : 16 Saia Faingaa, 17 Scott Sio, 18 Ben Alexander, 19 Kane Douglas, 20 Liam Gill, 21 Nic White, 22 Matt Toomua, 23 Jesse Mogg