Toni Pulu

Pulu, who joined the Canberra-based side this season with an eye on forcing his way into Michael Cheika's Wallabies squad, lasted less than 10 minutes with his new club against the Melbourne Rebels before he suffered the injury on Friday.

The 30-year-old, who was born in the United States and played rugby sevens for Niue, can represent Australia through his parents.

Once dubbed the fastest man in New Zealand rugby, Pulu was invited to a pre-season camp by Cheika as he assessed players he was interested in ahead of this year's showpiece in Japan.

The 28 year old was born in the United States and has lived in New Zealand since the age of three but also holds an Australian passport through his mother.

In May, 'Ikale Tahi coach Toutai Kefu said Pulu had expressed a desire to play test rugby for Tonga, who he also qualifies for, but this week confirmed the Canberra-bound flyer now intends to commit his international future to Australia.

Toni Pulu previously represented Niue in sevens but was later ruled ineligible for the Pacific nation.