Huddersfield back-rower Jason Chan could be sidelined for up to two months with a knee injury.
Chan, 29, suffered a knee ligament injury in the 32-8 win at Leeds on Friday.
Head Coach Paul Anderson said: “We’re looking at six to eight weeks.
“That’s what we feared when he first did it, and now that’s been confirmed.
“It’s obviously not good for Channy, but at least it’s not season-ending. That was something we weren’t able to rule out until the results of the scan were known.”