Sharks director of rugby Gary Gold plans to bring fly-half Patrick Lambie back into Super Rugby as a replacement this week when they play the Sunwolves in Durban.
The Sharks boss commented on Lambie's situation after their victory in against the Cheetahs at home and said the captain has been injured for too long for him to step right back into the 10 jersey.
However Lambie could see action off the bench in a supporting role.
"We are hoping that on Monday we will find that Pat is responding to the cognitive tests for concussion and will be cleared to play. He wasn’t ready this week," Gold told Supersport.
"Unfortunately, and I am sure Pat will agree with this, we have now reached a stage where Pat has been out for too long to be introduced straight back into the starting team.
"It is going to be imperative to get him to start exercising, which means getting onto a stationary bike, as soon as he is cleared to play."
"He is currently in his fourth week out, and so the best case scenario for us is that Pat will be available this week and then we can play him off the bench.