Cape Town - The Alaalatoa brothers - Michael and Allan - could play against each other this weekend when the Wallabies meet Samoa in a 2019 Rugby World Cup friendly in Parramatta.
This comes after Michael was named in Samoa's 31-man squad for the tournament in Japan.
Allan, meanwhile, is included in the Wallabies' squad for the tournament.
The two tighthead props were both born in Sydney where their father is understood to have played club rugby before he himself went on to represent Manu Samoa at the 1991 World Cup.
Saturday's meeting will be the last chance for both the Wallabies and Samoa to test combinations ahead of the start of the 2019 showpiece.
The brothers are unlikely to meet at the tournament itself, however.
Australia are pooled alongside Wales, Georgia, Fiji and Uruguay in Pool D while Samoa will struggle to get out of Pool A where they will meet Ireland, Scotland, Japan and Russia.
The tournament gets underway on Friday, September 20 when hosts Japan take on Russia.
Rugby World Cup squads:
Amosa, TJ Ioane, Jack Lam, Piula Fa’asalele, Josh Tyrell, Chris Vui,
Teofilo Paulo, Kane Leaupepe, Senio Toleafoa, Michael Alaalatoa, Paul
Alo-Emile, James Lay, Jordan Lay, Logovi’i Mulipola, Motu Matu’u, Ray
Niuia, Seilala Lam
Fidow, Tim Nanai-Williams, Ahsee Tuala, Belgium Tuatagaloa, Henry
Taefu, Alapati Leiua, Reynold Lee-Lo, Kieron Fonotia, AJ Atatimu, Tusi
Pisi, Ulupano Seuteni, Dwayne Polotaivao, Melani Matavao, Scott Malolua
Alaalatoa, Rory Arnold, Adam Coleman, Jack Dempsey, Folau Fainga'a,
Michael Hooper (captain), Sekope Kepu, Tolu Latu, Isi Naisarani, David
Pocock, Izack Rodda, Lukhan Salakaia-Loto, Rob Simmons, Scott Sio, James
Slipper, Taniela Tupou, Jordan Uelese
Ashley-Cooper, Kurtley Beale, Bernard Foley, Will Genia, Dane
Haylett-Petty, Reece Hodge, Samu Kerevi, Marika Koroibete, Tevita
Kuridrani, Christian Lealiifano, James O'Connor, Jordan Petaia, Matt
Toomua, Nic White