Spies to hit 100
It's a day of milestones for the Bulls on Saturday as Morné Steyn will become their most-capped player while Pierre Spies runs out for his 100th match.
Spies will become the Pretoria franchise's seventh player to turn out in 100 Super Rugby matches while Steyn is set to move past Victor Matfield and Danie Rossouw's 116 match mark.
Meanwhile, scrum-half Francois Hougaard will make his return to the starting line-up for the first time since injuring his ankle in March.
He will replace the in-form Jano Vermaak, who will supply cover from the bench.
Rising star Jan Serfontein has also recovered from an injury and will slot in at inside centre next to JJ Engelbrecht in the midfield.
Serfontein replaces Wynand Olivier, while Lionel Mapoe shifts to wing in the place of Bjorn Basson.
In the two changes among the forwards, Frik Kirsten and Morne Mellett exchange places with Werner Kruger and Dean Greyling.
Bulls: 15 Jürgen Visser, 14 Akona Ndungane, 13 JJ Engelbrecht, 12 Jan Serfontein, 11 Lionel Mapoe, 10 Morné Steyn, 9 Francois Hougaard, 8 Pierre Spies (c), 7 Dewald Potgieter, 6 Deon Stegmann, 5 Juandré Kruger, 4 Flip van der Merwe, 3 Frik Kirsten, 2 Chiliboy Ralepelle, 1 Morné Mellet.
Replacements: 16 Callie Visagie, 17 Werner Kruger, 18 Grant Hattingh, 19 Arno Botha, 20 Jano Vermaak, 21 Louis Fouchè, 22 Bjorn Basson
Date: Saturday, May 18
Kick-off: 17:05 local (16:05 BST, 15:05 GMT)
Venue: Loftus Versfeld
Referee: Jaco Peyper (South Africa)
Assistant referees: Ben Crouse (South Africa), Stefan Breytenbach (South Africa)
Television match official: Shaun Veldsman (South Africa)