Bulls duo Rudy Paige and Jacques-Louis Potgieter will not be considered for Saturday's Super Rugby game against the Stormers due to injury.
Paige has a grade 1 medial ligament tear and will be out of action for at least two weeks, whilst Potgieter has a grade 1 hamstring tear and will return to action on May 4, team doctor Org Strauss confirmed on Monday.
Burger Odendaal (hamstring), Bjorn Basson (knee), Flip van der Merwe (knee) and Arno van Wyk (bronchitis) have sat out training, with Odendaal only returning on Thursday. Basil Short (calf) will miss training this week.
Victor Matfield (knee), Pierre Schoeman (knee), Bandise Maku (pectoral), Carlo Engelbrecht (ankle), Werner Kruger (ankle), Duncan Matthews (knee), Ruan Steenkamp (knee) and Ryan Nell (knee) remain on the long-term injury list.