Originally from Sydney, Warren-Vosayaco was part of the now defunct Sunwolves Super Rugby team for three seasons and has been in Japan since 2016, now playing in the Top League with Munakata Sanix Blues.

The 25-year-old, who can play the midfield as well as a loose forward, was move back to push his case after fruitful talks with Rugby Australia's director of rugby, Scott Johnson.

"Prior to the World Cup in Japan I had conversations with Scott Johnson about potentially coming home to Australia," Warren-Vosayaco said.

"Growing up in Sydney and being part of the Manu Sutherland Academy at New South Wales when I was 15 and 16, the Waratahs was always a team I wanted to play for.

"I'm really excited to come back home and wear the sky blue jersey, and hopefully if I can perform well enough get the chance to play for the Wallabies one day."

Warren-Vosayaco is the brother-in-law of Wallabies hooker Brandon Paenga-Amosa, and said his success gave him "the fire to return".

Johnson rated Warren-Vosayaco as a "great young prospect" for the Waratahs and potentially the Wallabies.

"He wanted to explore overseas opportunities a few years ago and in doing so, it allowed him to develop his game," Johnson said.

"He now returns with a real hunger to go to the next level, and that is only a good thing for the Waratahs and potentially the Wallabies as well."

Johnson hinted there could be more signings to follow.

"We have a number of other key targets, both domestically and abroad, that we're working with at the moment to ensure Australian rugby is in the best possible position heading into next year and beyond," he said.

Australian Associated Press