Marais back at fullback for Stormers
The experienced duo return from injury in the only two changes to the Stormers' starting line-up for the play-off match.
In the only change to the backline Marais returns from a knee injury and starts at fullback, with Dillyn Leyds moving to the wing and Seabelo Senatla set to provide impact off the replacements bench.
Elstadt was a late withdrawal last week due to a wrist injury, but is fit to take his place on the side of the scrum for the quarterfinal, with Sikhumbuzo Notshe among the replacements.
There are just two other changes to the matchday squad, with fit-again props Oliver Kebble and Wilco Louw both included on the replacements bench.
"The players and management have put in a lot of hard work and in preparation for this game," said Stormers head coach Robbie Fleck.
"It was a cracker of a game when we played the Chiefs at Newlands earlier in the season and we are looking forward to another one."
Stormers: 15 Sarel Marais, 14 Cheslin Kolbe, 13 EW Viljoen, 12 Damian de Allende, 11 Dillyn Leyds, 10 Damian Willemse, 9 Jano Vermaak, 8 Nizaam Carr, 7 Rynhardt Elstadt, 6 Siyamthanda Kolisi (captain), 5 Pieter-Steph du Toit, 4 Eben Etzebeth (vice-captain), 3 Frans Malherbe, 2 Mbongeni Mbonambi, 1 Jacobus Janse van Rensburg.
Replacements: 16 Ramone Samuels, 17 Oliver Kebble, 18 Wilco Louw, 19 Chris van Zyl, 20 Sikhumbuzo Notshe, 21 Justin Phillips, 22 Seabelo Senatla, 23 Juan de Jongh.
Date: Saturday, July 22
Venue: Newlands, Cape Town
Kick-off: 17.00 (15.00 GMT; 03.00 NZ time, Sunday, July 23)
Referee: Jaco Peyper
Assistant referees: Rasta Rasivhenge, Quinton Immelman
TMO: Johan Greeff
