The Lions could be without former Junior Springbok tighthead prop Ruan Dreyer for the remainder of the Super Rugby season.
The Potchefstroom-born front-rower, who joined the Johannesburg outfit in 2010, had undergone surgery on his wrist which will potentially see him on the sidelines for up to six months.
25-year-old Dreyer joins fellow front-rowers, Malcolm Marx and Julian Redelinghuys, on the injury list after he fractured his wrist against the Kings last week.
In a statement released by the Lions earlier in the week, it stated: "Julian and Malcolm are recovering well. Depending on how well they progress this week they may be tested on Thursday to see if they can play this weekend."
The current front-row conundrum could force regular loosehead prop Jacques van Rooyen to migrate to the opposite side of the scrum as a replacement for Dreyer.