Schreuder out of Stormers clash
The duo sustained concussions in the Southern Kings' 37-23 victory against the Sunwolves at the Singapore National Stadium last weekend.
Schreuder and Zito will therefore be unavailable for the upcoming weekend's match as they are being given rest for their return to play recovery.
Furthermore, backup scrumhalf Rudi van Rooyen remained in Gauteng on the team's return from Singapore on Monday.
Van Rooyen sustained a suspected dislocation of the ankle after replacing Schreuder on Saturday.
The scrumhalf will be seeing a specialist in Pretoria for a full assessment and diagnosis.
"Van Rooyen's injury initially seemed a lot worse. He seems to have dislocated and then relocated his ankle. He is doing better than initially suspected. We will only know the full extent of the injury after he sees a specialist in Pretoria," team doctor Konrad von Hagen said.
