The Stormers are eager to test their depth at flyhalf with first-choice pivot Manie Libbok ruled out for this weekend's Champions Cup clash against Clermont in Cape Town.
Ireland great Brian O'Driscoll has hailed the SA sides' performances in the Champions Cup with the Bulls, Sharks and Stormers all in line to make the last 16.
The Stormers have announced the contract extension of Springbok tighthead prop Frans Malherbe until 2026.
London Irish's feint hopes of progressing in the Heineken Champions Cup vanished due to a pair of red cards as Stormers ran out 28-14 winners at the Gtech Community Stadium.
Stormers lock Ben-Jason Dixon insists they will stick with their defensive structure despite being caught out in their 24-17 loss to Glasgow Warriors last weekend.
The return of Angelo Davids and Junior Pokomela are among four changes to the Stormers team for Sunday's Champions Cup clash with London Irish in Brentford.