Petersen’s return after missing two matches with a groin strain is the only change to the Kings team who lost to the Cheetahs last week.
“It is great to have Sergeal back for the Waratahs clash, Sergeal is obviously a good talent and has proved to be a good finisher for us in the past couple of games. It is good to have that brilliance back in the backline and I hope he can start off where he finished off for us.” said Kings skipper Andries Strauss.
Luke Watson remains on the bench despite him being the squad captain, with Strauss retaining the captains arm band.
“Luke is making good progress, He will get more game time and we are pretty positive that he should be able to start the following week against the Highlanders. That is a big positive for us, so things are going well.” Kings director of rugby Alan Solomons said.
The Kings host the Waratahs in PE on Saturday, KO 17:05 CAT (16:05 BST)
15. George Whitehead , 14. Sergeal Petersen , 13. Ronnie Cooke , 12. Andries Strauss (Captain) , 11. Siyanda Grey , 10. Demetri Catrakilis , 9. Shaun Venter , 8. Jacques Engelbrecht , 7. Wimpie van der Walt , , 6. Cornell du Preez 5. Rynier Bernado ,4. Steve Sykes (Vice Captain) , 3. Kevin Buys , 2. Bandise Maku ,1. Schalk Ferreira
Replacements : 16. Virgile Lacombe , 17. Grant Kemp , 18. David Bulbring , 19. Luke Watson , 20. Nicolas Vergallo , 21. Waylon Murray , 22. Siviwe Soyizwapi