Scotland duo Tommy Seymour and Moray Low have emerged as injury doubts for Saturday's clash with Australia at Murrayfield.
Seymour suffered a calf problem, while Low sustained a shoulder injury during last weekend's heavy defeat to South Africa.
The pair could now miss their team's upcoming encounter with the Wallabies.
Meanwhile, Greig Laidlaw and Nick De Luca may also be forced to sit out the match in Edinburgh.