The Bulls will be without the services of Roelof Smit for their clash against the Highlanders at Loftus on Saturday.
The openside flank suffered a head injury during the 28-10 win against the Rebels.
However, wing Travis Ismaiel, who has been out with a back strain, and loose forward Nic de Jager, who had a rib injury, have returned to full training and should be available for selection.
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