Tyson Frizell will have more scans on Monday to determine the extent of the injury he picked up in Saturday's clash with the Tigers.
Speaking with Triple M Sunday NRL, teammate Jason Nightingale said that the club is hoping the injury isn't as serious as first thought.
"He went for a scan at Concord hospital last night and I think it came back saying it wasn't a break," Nightingale said.
"So it might be a bit of rib cartilage, but he's also going to have a follow-up scan."
Listen to Nightingale's full interview below.