The Chiefs will be keeping a very close eye on the Hurricanes-Crusaders, which kicks off about 20 minutes after fulltime in their game.
"It will have a massive impact on our travel. We'll know by about 9.20pm. Packs are packed ready to go. If we have to leave them in a corner for a few days and go to Canberra, that will be good."
Hooker Nathan Harris was the only member of the All Blacks contingent at Chiefs' training on Monday, but he, Aaron Cruden and Damian McKenzie should be fine to play on Saturday.
"We told them (the All Blacks) to stay away (today). They've had a pretty intense three weeks, and only left the camp after lunchtime on Sunday, so we'll let them clear their heads a bit. We just want them fizzing come playoff time," says Rennie.
That means potentially Sam Cane, Brodie Retallick and Anton Lienert-Brown, who played extensive minutes in the Lions series, will not suit up against the Brumbies.
The Chiefs' injury toll is not too extensive, having played just one game in the last month, but Sam McNicol (concussion), Toni Pulu (knee) and Taleni Seu (forearm) are all scratched for the rest of the campaign.
Rennie will be seeking more of the intensity shown in the 17-14 win over the Hurricanes on June 9, rather than the loose play when his underpowered charges were pumped 34-6 by the Lions in the tourists' most complete 80 minutes of the tour.