Hull Kingston Rovers have confirmed that co-captain Josh Hodgson is to join NRL side Canberra Raiders at the end of the current Super League season.
Hodgson, who has made more than 100 appearances for Rovers, has signed a two-year contract with the Raiders from 2015.
Hull KR will be without back-row forwards Kevin Larroyer and Jordan Cox for around six weeks after they both suffered fractured ankles in Sunday's 54-12 defeat at Castleford.
French international Larroyer has started all 16 matches since joining the Robins on a season-long loan from Catalan Dragons while Cox has missed only four games so far this year.
Coach Craig Sandercock said: "It's very disappointing to lose both Kevin and Jordan for that amount of time.
"Kevin has been one of our best players this season and Jordan had just come back into the team, so for them both to suffer the same injury within a few minutes of each other is a blow for us."
Hull KR loose forward Dave Petersen is to join his Robins team-mate Louis Sheriff in Australia in 2013. 20-year-old Petersen, who made four Super League appearances in 2012 when he spent most of the season on a dual registration with Workington,
was due to sign a new deal at Craven Park when he received an offer from Queensland Cup team Mackay Cutters. has signed a 12-month contract with the Cutters, who have also recruited Rovers' Australian prop Joel Clinton to play alongside Wales international Neil Budworth.
Full-back Sheriff also rejected the offer of a new contract with Hull KR to sign for Brisbane Redcliffe Dolphins, who play in the same league as Mackay.
Hull KR forward Rhys Lovegrove has signed a new three-year contract which will keep him at Craven Park until the end of 2015. The 25-year-old, joined the club five years ago when they entered Super League, and was due to be out of contract at the end of the season.
"I always wanted to stay here," said Lovegrove, who made his 100th appearance for the club earlier this season . "It's great to get it all sorted out and the new contract takes me a long way towards my goal of being a one-club player."