The Brumbies are sweating over the fitness of wing Joe Tomane after he suffered a knee injury late on in their fixture against the Crusaders.
Tomane, who has been in solid form in Super Rugby this season, was looking set to don the Wallaby jersey in June's series against England.
But the injury sustained in Canberra on Sunday has both franchise and country worried, with head coach Stephen Larkham revealing the latest.
"It's not looking likely (that Tomane will play this weekend)," Larkham told reporters ahead of this weekend's fixture with the Highlanders.
"He's off for another scan right now.
"The physios and the doctors had a look at the time and it looks like there’s some significant damage there to his knee.
"It could be up to that long (six to ten weeks), but again the scans will give us some more information there."
In other injury news from the Brumbies squad, hooker Stephen Moore is a doubt with a calf injury but back-row David Pocock will return from his recent suspension for Saturday's game as Larkham's men head to Dunedin.