They've had some big wins over the last couple of weeks
The Brumbies have named their team to face the Force this weekend, with Scott Sio at loosehead prop the only change from last week's line-up.
Sio starts into the No.1 jersey, with Ben Alexander moving across the scrum to tighthead prop and Dan Palmer out of the match-day 22.
Ruaidhri Murphy makes his second appearance from the bench, while Leon Power has also been included as a run-on reserve.
It's Power's first appearance for the 2013 season and he comes onto the bench for Jordan Smiler.
"As always with local derbies, we expect Saturday's match to be full of feeling and a tough contest right to the final siren," coach Jake White said.
"Scotty comes into the team for Palmer who has been left out this weekend. Scotty has come along nicely this year and looks at home in the starting line-up.
"The Force has a strong record against us here in Canberra, they almost got us here in round one last year and in 2011 they had a big, come from behind win.
"They're a good team who have had some big wins over the last couple of weeks. It takes plenty of guts to overcome the Crusaders and the Reds and we will need to be at the top of our game to get a win on Saturday."
Brumbies: 15 Jesse Mogg, 14 Henry Speight, 13 Tevita Kuridrani, 12 Christian Lealiifano, 11 Joe Tomane, 10 Matt Toomua, 9 Nic White, 8 Ben Mowen (captain), 7 George Smith, 6 Fotu Auelua, 5 Sam Carter, 4 Peter Kimlin, 3 Ben Alexander, 2 Stephen Moore, 1 Scott Sio.
Replacements: 16 Siliva Siliva, 17 Ruaidhri Murphy, 18 Leon Power, 19 Colby Faingaa, 20 Ian Prior, 21 Pat McCabe, 22 Robbie Coleman.
Date: Saturday, April 27
Venue: Canberra Stadium, Canberra
Kick-off: 19.40 (09.40 GMT)
Referee: Angus Gardner (Australia)
Assistant referees: Andrew Lees (Australia), Matt O'Brien (Australia)
TMO: Matt Goddard (Australia)