The Bulls are monitoring Handré Pollard after he sustained a hamstring complaint during their 34-26 URC win over Ulster in Round Four. He has undergone a scan and his availability will be determined once results are assessed.
Canan Moodie has returned to training under HIA protocols following a head injury against Ulster but will not be considered for the home clash against Scarlets at Loftus Versfeld. Cheswill Jooste, who required surgery for a broken cheekbone, faces a mandatory two-week HIA stand-down with extended rest recommended on top of that.
Centre Sango Xamlashe is also ruled out of the Scarlets match after completing HIA protocols following a concussion sustained in the same fixture.
Embrose Papier remains sidelined for several weeks as he recovers from an ankle operation, while Thaakir Abrahams is expected to return within a week from a hamstring injury.