Bill Tupou.

Winger Bill Tupou has been released from his NRL contract with the Warriors with immediate effect.

He'll join the Canberra Raiders on a two-and-a-half year deal, with the possibility of making his debut as early as this weekend against the Rabbitohs.

Tupou has played 62 matches for the Warriors after making his debut against Manly in 2010. He's scored 19 tries, including three this season, and started in the 2011 Grand Final against the Sea Eagles.

The 22-year-old started nine of the Warriors first 10 games this season before being replaced by Glen Fisiiahi and Ngani Laumape during the side's four-game winning run.