Wallabies squad members Peter Kimlin and Scott Sio will join Canberra club player, Chris Cocca when the Brumbies host the British and Irish Lions on Tuesday.
An impressive season with Easts in Canberra's club competition has catapulted Cocca into the big time with the burly prop now set to tackle one of the world's most respected set pieces.
Starting from an eight-man bench, Cocca is joined by fellow debutant prop, Jean-Pierre Smith as two of four new inclusions to the team which pummelled the Rebels two weeks ago. Smith's identical twin brother, Ruan Smith, will start at loose-head prop.
Andrew Smith has also been included at inside-centre in his first match back since straining his hamstring against the Highlanders in round nine. He comes into the side for Pat McCabe who has been included in the Wallabies squad.
Mark Swanepoel comes onto the bench, with Ian Prior to start in place of Nic White who has a fractured scapular. The team will be skippered by Kimlin, who led the Brumbies to victory in the absence of White, two weeks ago against the Rebels.
"It's fantastic for Chris that he has this opportunity to face the Lions," said Brumbies boss Jake White.
"I'm sure he is still pinching himself.
"He's been in fantastic form for Easts and deserves this shot at the Lions. It's a bit of a new situation for us, with an eight-man bench, but JP [Jean-Pierre Smith] has been training with us for a month now and he's comfortable with the job ahead of him.
"I think it's a good indication that the competition in Canberra is becoming stronger, that we can take the local players and play them against a quality outfit like the Lions.
"In the backs it's comforting to be able to include a guy like Andrew Smith, who's got plenty of experience. With Tevita [Kuridrani], they form a big centre pairing and it will be interesting to see how they combine.
"This is a huge occasion for us as a team, but also individually. The Lions are one of rugby's last romantic sides, there is plenty of history there and we know that beating the Lions will go down in Canberra's rugby folk law for many years to come."
In 2001, minus the majority of their stars away with the Wallabies, the Brumbies went pain-stakingly close to knocking the Lions over at Canberra Stadium before a late try to Austin Healey saved the Lions, who won 30-28.
Brumbies: 15 Jesse Mogg, 14 Henry Speight, 13 Tevita Kuridrani, 12 Andrew Smith, 11 Clyde Rathbone, 10 Matt Toomua, 9 Ian Prior, 8 Peter Kimlin (c), 7 Colby Faingaa, 6 Scott Fardy, 5 Sam Carter, 4 Leon Power, 3 Scott Sio, 2 Siliva Siliva, 1 Ruan Smith.
Replacements: 16 Josh Mann-Rea, 17 Jean-Pierre Smith, 18 Chris Cocca, 19 Etienne Oosthuizen, 20 Jordan Smiler, 21 Mark Swanepoel, 22 Robbie Coleman, 23 Zack Holmes.
Date: Tuesday, June 18
Venue: Canberra Stadium, Canberra
Kick-off: 19.30 local (10:30 BST, 09:30 GMT)
Referee: Jérôme Garcès (France)