WARRINGTON Wolves have announced the signing of Penrith Panthers back rower Trent Waterhouse for the 2012 season.

The Australian international will join Wolves from the NRL after signing a three-year contract that keeps him at the club until November 2015.

Wolves have also announced that centre Matt King has decided not to extend his contract for another year and will move back to Australia to join South Sydney Rabbitohs at the end of the current season.

King had the option to play a fifth and final year with the club, but decided it would be best for his young family to return to Australia as soon as possible.