The Western Force have secured the services of South Africans Marcel Brache and Chris Heiberg for the 2014 Super Rugby season.
The pair have both been involved in the Stormers set-up but have been unable to break into the first XV, with outside centre Brache registering one appearance last year and prop Heiberg failing to make his debut.
Brache, who was born in the United States but moved to South Africa when he was four, has penned a two-year deal, while Heiberg has agreed a one-year stint.
RugbyWA chief executive Mark Sinderberry says that the Force's decision to look abroad for talent is as a result of a small player pool in Australia.
"With four provinces fighting over the same players on the east coast, we'll continue to think outside the square with regard to our recruitment," he explained to AAP.
"Marcel and Chris join our club as one of a number of recruitment initiatives we're putting into place that will not only see us become self-sustainable, but also help extend the list of players eligible for Wallaby selection."
Brache and Heiberg join fellow South African Sias Ebersohn and Kiwi Jayden Hayward as foreign developing players in the squad while Wilhelm Steenkamp and Alby Mathewson are the franchise's foreign players.
Steenkamp, Dane Haylett-Petty, Zack Holmes, Luke Morahan and Ian Prior are others who will be playing their first season with the Force next year.