Matt Giteau and Sean McMahon have finished winners and fellow Wallabies star David Pocock has been hurt in the Japan Top League rugby final in Tokyo.
Suntory Sungoliath beat Panasonic Wild Knights 12-8 in a game featuring several Australians, with both superstar back-rower Pocock and former Wallabies playmaker Berrick Barnes coming off early.
Wild Knights leader Pocock initially left the field just before the half-hour mark with a head knock.
While he resumed a few minutes later, he was replaced at halftime.
He is due back next week in Australia to resume his Super Rugby career with the Brumbies after having a sabbatical in 2017.
Pocock will be favoured to regain a Wallaby back-row spot.
With Michael Hooper captaining the Wallabies from Pocock's usual openside flanker position, the latter could fill the vacancy at No.8 created by McMahon's recent move to Japan.
Five-eighth and 103-Test Wallaby Giteau converted a third-minute try on Saturday to give Suntory a 7-0 lead.
Former Wallabies flanker Daniel Heenan scored a seventh-minute try to get the Wild Knights back within two points.
Suntory stretched their advantage back to seven with another try, which 35-year-old Giteau failed to convert, and they led 12-5 at the break.
The Wild Knights kicked one second-half penalty, the only score of the final 40 minutes.
The Wild Knights' side also included Australian forwards Sam Wykes and Ben Gunther.
One of their their second-half substitutes was ex-Wallaby winger Digby Ioane.