Rory and Richie Arnold are set to start together for the first time in Super Rugby when the Brumbies face the Waratahs.
The Arnold twins, who stand at 208cm, will form the tallest locking combination in Super Rugby history when they run out in Sydney as the Brumbies look to supersize their team against NSW.
Loosehead prop Scott Sio returns to the starting side from injury in a boost for the ACT side and one of two other changes to the starting side.
Blake Enever moves into the backrow to replace Tom Cusack (concussion) and team up with David Pocock and Isi Naisarani.
Sam Carter is the only other change in the Brumbies 23 after missing weeks with a back concern.
The Brumbies need a bonus-point win over the Waratahs to keep their finals hopes alive after a strong finish to the regular season.
The Brumbies take on the Waratahs on Saturday July 14, kicking off at 7:45pm AEST, LIVE on FOX SPORTS and via RUGBY.com.au RADIO
TEAM
IN: Sam Carter, Scott Sio
OUT: Ben Alexander, Tom Cusack
Brumbies to face Waratahs
1. Scott Sio
2. Folau Fainga’a
3. Allan Alaalatoa
4. Rory Arnold
5. Richie Arnold
6. Blake Enever
7. David Pocock
8. Isi Naisarani
9. Joe Powell
10. Christian Lealiifano
11. Andrew Muirhead
12. Kyle Godwin
13. Tevita Kuridrani
14. Henry Speight
15. Tom Banks
Reserves
16. Connal McInerney
17. Nic Mayhew
18. Leslie Leuluaialii-Makin
19. Sam Carter
20. Lachlan McCaffrey
21. Matt Lucas
22. Wharenui Hawera
23. Lausii Taliauli