Western Force winger Nick Cummins will seek a surgeon's help after breaking a hand in the Wallabies' one-point win against Argentina.
And the Australian Rugby Union expects to make a loss on Saturday night's Patersons Stadium Test as the Wallabies' poor form and the inclement weather reduced the crowd to only 18,214.
Cummins, who improved from his performance against South Africa the previous Saturday, had scans yesterday. It is understood he has a small break and could play with the injury.
Cummins has two weeks to recover before the Wallabies meet South Africa in Cape Town, which will be followed by Argentina in Rosaria.
Cummins ran hard in Saturday's 14-13 win and while he was abruptly chopped down by Argentinian No.8 Juan Manuel Leguizamon in one charge, he returned the favour with a crunching tackle that forced a key second-half turnover.
Coach Ewen McKenzie was happy with Cummins' game.
"It was more like what we expect from him, good chase, good enthusiasm, puts his body on the line. That's what we want, that's what we expected," McKenzie said.
"It was far more typical of what we expect of him. Last week he was probably a bit too excited and got a bit ahead of himself early."
The ARU budgeted for a 25,000 crowd and pre-sold 20,000 tickets, but the crowd was the smallest for a Wallabies Test since 15,438 fans turned out for a clash with Fiji in Canberra three years ago.
The ARU and State Government had discussed a move to the smaller and rugby-friendly nib Stadium because of a possible AFL finals clash, but that was ruled out because resurfacing at the newly developed ground had not finished.
The next Test in 12 months against South Africa will be played at Patersons Stadium because the Springboks attract a much bigger crowd.
Last year almost 34,500 fans attended a game.The ARU and State Government have had preliminary talks on future Tests matches in Perth. An Eventscorp spokesman said they were interested in a "long-term" deal.