Lions Bok not ready for Bulls
The Springbok No.8 has still not recovered from a calf injury that kept him out of last weekend's victory against the Eastern Province Kings.
Prop Julian Redelinghuys suffered a chest injury that has ruled him out of training on Monday and Tuesday – casting doubt over his availability.
He will have to pass a late fitness test on Thursday to see if he will play at the weekend.
Lock Martin Muller has an ankle injury, but he may be available for selection if he passes a fitness test, also scheduled for Thursday
Centre Nicolaas Hanekom has recovered from an injury to his jaw and should be available for selection.
Wing Anthony Volmink is out with concussion and will follow the return-to-play protocol.
Flyhalf Jaco van der Walt has also fully recovered from his chest injury and will be available for selection.