The Bulls have made two changes for their match against the Stormers at Loftus on Saturday.
Johann Sadie has been dropped from the match 22 with JJ Engelbrecht given the No 13 jersey, while Juandre Kruger replaces Wilhelm Steenkamp in the second row.
Sadie has struggled to replicate the form that he produced for the Stormers and WP last season, although he has been carrying an injury at times. His defence in particular has been a liability and coach Frans Ludeke has gone for the safer option in Engelbrecht, who has impressed in the midfield since moving from wing.
Flank Jacques Potgieter has been given another week to recover from his knee injury.
Bulls – 15 Zane Kirchner, 14 Akona Ndungane, 13 JJ Engelbrecht, 12 Wynand Olivier, 11 Bjorn Basson, 10 Morne Steyn, 9 Francois Hougaard, 8 Pierre Spies (c), 7 CJ Stander, 6 Dewald Potgieter, 5 Juandre Kruger, 4 Flip van der Merwe, 3 Werner Kruger, 2 Chiliboy Ralepelle, 1 Dean Greyling.
Subs: 16 Willie Wepener, 17 Rayno Gerber, 18 Wilhelm Steenkamp, 19 Arno Botha, 20 Jano Vermaak, 21 Louis Fouche, 22 Francois Venter.