John Bateman requires additional surgery to correct a shoulder problem, Canberra Raiders have confirmed.
The 26-year-old England international missed the start of the NRL season after undergoing surgery in February.
No date has been put on his return, but it is hoped he will return to action before the end of the campaign.
"I'm gutted to be having surgery again," Bateman told the club's official website.
"It's what's best for me and the team and to help me get back on the field as soon as possible. I'll be working harder than ever with my rehab to get myself back on the field with the lads."
Last month, Bateman, who was named Dally M Second Rower of the Year in his first campaign in Australia, revealed Canberra gave him the green light to speak to other clubs about a move due to their salary-cap restrictions.
He denied he was looking to engineer a way out, though, saying he was eager to remain in the capital.