Bulls flanker Dewald Potgieter has been ruled out of Saturday's clash with the Kings following a knee injury and will be replaced by Arno Botha.
Botha, who was named on the bench, will start in the number seven jersey, with another Springbok forward Jacques Potgieter moving to the bench.
The new loose trio combination of Pierre Spies, Botha and Deon Stegmann has played together on two occasions already this year, against the Blues in Auckland and Crusaders in Christchurch.
Bulls (revised): 15 JÃ¼rgen Visser, 14 Akona Ndungane, 13 JJ Engelbrecht, 12 Jan Serfontein, 11 Lionel Mapoe, 10 MornÃ© Steyn, 9 Jano Vermaak, 8 Pierre Spies (c), 7 Arno Botha, 6 Deon Stegmann, 5 JuandrÃ© Kruger, 4 Flip van der Merwe, 3 Frik Kirsten, 2 Chiliboy Ralepelle, 1 MornÃ© Mellet.
Replacements: 16 Callie Visagie, 17 Werner Kruger, 18 Paul Willemse, 19 Jacques Potgieter, 20 Rudy Paige, 21 Louis FouchÃ¨, 22 Bjorn Basson.