Father Inosi, older sister Bulou and younger brother Samuela have travelled from Fiji to Japan to support Wallabies centre Tevita Kuridrani, who was born in Suva but has gone on to earn 60 test caps since his debut for Australia in 2013.
Inosi said he was extremely proud of what his son had achieved in his career and would be putting family above country on Saturday afternoon in Sapporo.
"The family needs to support Australia to win, especially if my son is playing for Australia," he said.