Edinburgh - Lock Tim Swinson has been ruled out of the Scotland lineup to take on Australia in a Test match at Murrayfield on Saturday.
The Glasgow Warriors forward aggravated a chest injury sustained originally against Japan during training in Edinburgh on Wednesday.
His place in the starting line-up will go to Grant Gilchrist, the 23-year-old Edinburgh second-rower, who will win his fourth cap.
Gilchrist's place on the bench went to Jonny Gray, who won his first cap in the 28-0 loss to South Africa at Murrayfield last week.
But there was no place for Gray's brother, Richie, a British and Irish Lion after his faltering line-out display against the Springboks.
Later Thursday, Scotland confirmed their side after wing Tommy Seymour was passed fit after sustaining a leg injury last weekend.
One changed behind the scrum saw Duncan Weir preferred to Glasgow team-mate Ruaridh Jackson at fly-half, with Max Evans' ability to cover both centre and wing earning him a bench spot.
"The injuries we've experienced with four of our frontline backs sidelined during this series -- Stuart Hogg, Tim Visser, Alex Dunbar and Matt Scott - have meant that we've had to think long and hard about combinations and our bench this weekend," said Scotland's Australian coach Scott Johnson.
Maitland, 14 Tommy Seymour, 13 Nick de Luca, 12 Duncan Taylor, 11 Sean
Lamont, 10 Duncan Weir, 9 Greig Laidlaw, 8 David Denton, 7 Kelly Brown
(captain), 6 Johnnie Beattie, 5 Jim Hamilton, 4 Grant Gilchrist, 3 Moray
Low, 2 Ross Ford, 1 Ryan Grant
16 Pat MacArthur, 17 Alasdair Dickinson, 18 Euan Murray, 19 Jonny Gray,
20 Kieran Low, 21 Chris Cusiter, 22 Ruaridh Jackson, 23 Max Evans
Israel Folau, 14 Joe Tomane, 13 Christian Leali'ifano, 12 Mike Harris,
11 Chris Feauai-Sautia, 10 Quade Cooper, 9 Will Genia, 8 Ben Mowen
(captain), 7 Michael Hooper, 6 Scott Fardy, 5 James Horwill, 4 Rob
Simmons, 3 Sekope Kepu, 2 Stephen Moore, 1 James Slipper
16 Saia Fainga'a, 17 Ben Alexander, 18 Pady Ryan, 19 Sitaleki Timani,
20 Ben McCalman, 21 Nic White, 22 Nick Phipps, 23 Bernard Foley