Durban - Flyhalf Pat Lambie has been ruled out of rugby for the remainder of the Super Rugby season, and probably the remainder of 2017, if reports coming out of Durban are to be believed.
The 26-year-old continues to battle concussion symptoms.
Lambie spent five months recovering from the sickening head knock he received against Ireland in June 2016 and then, more recently, received another blow to the head after colliding with team-mate Rhyno Smith in a Super Rugby clash against the Kings on May 13 this year.
Lambie has not featured since then and the reports from Durban have not been positive, with calls made for him to retire from the game.
"We are in the hands of the medical experts but it is unlikely that Pat will play for the Sharks again this year. We can only hope that Pat will fully recover after a long break," Teichmann said.
"It is very sad that our captain cannot play but the matter is with the experts in this field (concussion), and it looks like Pat must take a long rest from rugby."
The Sharks are next in action when they take on the Bulls in Durban on Friday night.
I'm calling on the incredible, brave @PatLambie to retire from rugby for the sake of his long-term health.— Rob Otto@Sharksworld (@sharksworld) June 27, 2017