Brumbies number eight Ben Hyne has suffered a setback after making his Super Rugby debut on Friday, with the back-row sustaining an ankle injury.
The player started alongside Scott Fardy and Jarrad Butler against the Reds but will now miss at least their next game against the Blues.
According to the Canberra Times, Michael Wells looks set to start on the openside in Auckland, with Butler switching to the eight jersey.
"Leading up to it, as cliched as it sounds, it was a dream come true. It still is, but obviously it didn't really go the way [I wanted]," Hyne told the newspaper after he made his bow at GIO Stadium on Friday.
"I certainly won't forget my debut … to be able to put myself in the position to be selected I've worked hard since November, just like everyone else in the squad.
"To get the debut through a bit of injury I still see that I'm a valid member in the squad and the boys had full confidence in me.
"I'm signed for next year so it definitely has been worth it. I don't think I've made it just yet, but certainly a step closer.
"Hopefully there's more caps to come. I'll get into the gym, do all the rehab, get back out there as soon as I can."