The 56-strong selection will meet in Cape Town for a three-day camp ahead of a Test season that begins with the July visits to South Africa from Italy and Georgia.
Enforced rotation, poor results, and logistical and political issues have raised questions over the viability of South African Champions Cup involvements.
.Alex Dombrandt and Cadan Murley plundered hat-tricks as Harlequins’ Investec Champions Cup campaign was given lift off.
Springboks back Manie Libbok, versatile forward Keke Morabe and Ben-Jason Dixon are likely to miss this weekend's important clash at Twickenham Stoop against Harlequins.
The Stormers are running out of cattle according to head coach John Dobson after two players were hospitalised after the game against Toulon.