Rotation policy at work
Bulls coach Frans Ludeke made four changes to his side to play the Cheetahs in Bloemfontein on Saturday.
Describing it as "part of the rotation policy", Ludeke named young guns Arno Botha and Jan Serfontein in the starting XV for this crucial Round 16 encounter.
There are also starts for the experienced Werner Kruger and Lionel Mapoe.
All four were on the bench in the narrow win over the Sharks last week.
They replace Dewald Potgieter, Wynand Olivier, Frik Kirsten and Akona Ndungane respectively.
Potgieter and Kirsten will play off the bench, while Olivier drops out of the matchday 22.
Ndungane did not recover from a lower leg injury in time.
Zane Kirchner will make his comeback to the Super Rugby competition off the bench, following his fractured finger, while Louis Fouché has been cleared of the hip injury that saw him miss the encounter in Durban.
Callie Visagie also rotates with Willie Wepener as back-up hooker.
Bulls: 15 Jürgen Visser, 14 Lionel Mapoe, 13 JJ Engelbrecht, 12 Jan Serfontein, 11 Bjorn Basson, 10 Morné Steyn, 9 Francois Hougaard, 8 Pierre Spies (captain), 7 Arno Botha, 6 Deon Stegmann, 5 Juandré Kruger, 4 Flip van der Merwe, 3 Werner Kruger, 2 Chiliboy Ralepelle, 1 Dean Greyling.
Replacements: 16 Callie Visagie, 17 Frik Kirsten, 18 Grant Hattingh, 19 Dewald Potgieter, 20 Jano Vermaak, 21 Louis Fouché, 22 Zane Kirchner.
Date: Saturday, June 1
Venue: Free State Stadium, Bloemfontein
Kick-off: 19.10 (17.10 GMT)
Referee: Jason Jaftha (South Africa)
Assistant referees: Jaco Peyper (South Africa), Francois de Bruin (South Africa)
TMO: Gerrie Coetzee (South Africa)