Warriors winger Glen Fisiiahi faces up to eight weeks on the sidelines after suffering a knee injury during a training run last week.
Fisiiahi joins Micheal Luck and Manu Vatuvei on the list of injured players unavailable for Saturday night's crucial showdown with the Titans on the Gold Coast.
Coach Brian McClennan said Fisiiahi was just returning to full fitness from a knee injury when he went down again last week.
"It appears he has ruptured his PCL [posterior cruciate ligament] and if that's the case he will be out for six to eight weeks," McClennan said.
"He hasn't had a lot of luck. It's part of our business, but it's a shame. We would love to give him more opportunities; he's a very exciting prospect."