The North-South clash will kick-off at 18h15, with DHL Western Province Women up against Boland Dames in the curtain-raiser at 15h00. Both games will be televised live on SuperSport.
Mbonambi starts in the only change to the front row in place of Scarra Ntubeni, while David Meihuizen is at lock in place of JD Schickerling who injured his ankle against the Cell C Sharks last week.
Flanker Nama Xaba picked up an ankle injury at training this week and has been replaced by Marcel Theunissen, with Evan Roos at No 8 and Willie Engelbrecht among the replacements this week.
Scrumhalf Herschel Jantjies has not recovered from a quad contusion in time, so Godlen Masimla will link up at halfback with Abner van Reenen, who is in for Kade Wolhuter after the young flyhalf ruptured knee ligaments (ACL) last week.
Dan du Plessis starts at outside centre, with Ruhan Nel having joined the Springbok Sevens team, and Leolin Zas and Sergeal Petersen start on the wings, with Seabelo Senatla suspended.
DHL Stormers head coach John Dobson said that despite the forced changes, there is a lot to look forward to from a talented side this weekend.
“Many of the players coming in impressed in the preparation matches and will relish the opportunity to prove themselves in a big game such as this," said Dobson.
“We are excited to see what the new combinations can offer alongside the senior players who make up the core of this team,” reckons Dobson.
DHL Stormers: 15 Damian Willemse, 14 Sergeal Petersen, 13 Dan du Plessis, 12 Rikus Pretorius, 11 Leolin Zas, 10 Abner van Reenen, 9 Godlen Masimla, 8 Evan Roos, 7 Pieter-Steph du Toit, 6 Marcel Theunissen, 5 Marvin Orie, 4 David Meihuizen, 3 Frans Malherbe, 2 Bongi Mbonambi, 1 Steven Kitshoff (captain). Replacements (from): 16 Scarra Ntubeni, 17 Leon Lyons, 18 Neethling Fouche, 19 Ernst van Rhyn, 20 Willie Engelbrecht, 21 Paul de Wet, 22 Cornel Smit, 23 Edwill van der Merwe, 24 Andre-Hugo Venter, 25 Adre Smith.
Date: Saturday, 8 May 2021
Venue: Cape Town Stadium, Cape Town
Referee: Stuart Berry
Assistant Referees: Jaco Peyper, Aimee Barrett-Theron
Television Match Official: Marius Jonker
TV: SuperSport Rugby and Grandstand