Morley is likely to play some part against Papua New Guinea on Saturday
Warrington forward Adrian Morley has committed himself to the club for a further two years.
Morley, in Australia preparing for England's World Cup opener against Papua New Guinea on Saturday, has taken up a one-year option on his contract.
"We're delighted he has agreed to extend his stay with us," said Wolves chief executive Andy Gatcliffe.
Next season, however, could be the last at the Halliwell Jones Stadium for Morley's team-mate Martin Gleeson.
The 28-year-old is keen on a move back to Australia, where he lived for eight years before moving to England as a 17-year-old, and has been linked with Melbourne Storm.
"Martin has agreed to put his 100% commitment into 2009 and that's what is on the agenda at the moment," Warrington owner Simon Moran said.
"We'll probably be sympathetic from there on. It gives us plenty of time to get an equally good replacement, which wouldn't have been the case for next year."
Meanwhile, Chris Riley and Lee Mitchell have both agreed new three-year deals at the club.
"It's good for me and it takes a little bit of pressure off for next year," said 20-year-old Mitchell.
"I've just got to keep looking forward and improving. Over the next few years I want to secure a regular spot in the first team with one eye on international honours with England in the future."