Brisbane skipper Darren Lockyer has been sent for scans and is facing at least a fortnight on the sideline.
Lockyer's knee continues to cause Brisbane concerns after he failed to get through last Friday night's loss to Melbourne.
However, the club's performance director Jeremy Hickmans says while Lockyer's knee injury is a concern, it is not career-treating and he is unlikely to need further surgery.
Hickmans says he will know more about the extent of Lockyer's injury when he receives the results of the scans on Tuesday.
Lockyer's reconstructed right knee has been a focus of attention since the champion five-eighth made a comeback against Penrith last month.
Coach Wayne Bennett brought Lockyer off the bench in his first two appearances of the season before he missed round three win over the Cowboys.
Lockyer also came off the bench against the Storm but he failed to see the game out, having to leave the field with knee soreness.
Asked if Lockyer's career was in doubt, Hickmans delivered a swift "I don't think so".
"We've just got to be (careful) on the load we put him through and after game we have to re-access him.
"His knee just became progressively sore during the (Storm) game and we have to investigate over the next few days what's happening".
Hickmans says it is extremely unlikely Lockyer will require further surgery.