Bulls trio Werner Kruger, Arno Botha and William Small-Smith have all been ruled out for the next few weeks due to injury.
In fact, prop Kruger has been ruled out for at least six weeks, if not longer, after he picked up an ankle injury in Saturday's ;loss to the Stormers.
Arno Botha, who also left the field on Saturday evening, will be out for two to three weeks with a pectoral injury, team doctor Org Strauss confirmed.
Small-Smith, who played for the Blue Bulls team against Pumas in a warm-up match, injured his ankle and will be out of action for at least two weeks. Another midfielder, Burger Odendaal (knee) was ruled out for 4-6 weeks.
There is some good news on the propping front, with Dean Greyling training on Thursday and Marcel van der Merwe (knee/hamstring) due to return in two weeks.
Morne Mellett (ribs), Jacques du Plessis (hip), Hanro Liebenberg (back) and Basil Short (eye) will all train on Tuesday, but Akona Ndungane and Travis Ismaiel both trained on Monday and will be considered for Friday's match against the Hurricanes at Loftus Versfeld. Nicolaas Janse van Rensburg (shoulder) will also be rested for a week.
Flip van der Merwe (pectoral, mid-April), Hencus van Wyk (foot, three weeks), Pierre Schoeman (knee, five months) and Bandise Maku (pectoral, four months) have joined Kruger and Odendaal on the long-term injury list.