However, the Stormers' long-term injured players were all making good progress ahead of the 2015 Super Rugby tournament.
Carr was in hospital last week with a severe viral infection, but has since been discharged and is recovering well at home. Kolisi is resting a hamstring niggle from last week, the Stormers said in a statement.
Locks Jean Kleyn and Ruan Botha and prop Frans Malherbe were making good progress from their long-term injuries, with the former joining full team training on Monday.
The Stormers will travel to George on Friday, ahead of Saturday's meeting with the SWD Eagles at Outeniqua Park. The team to face the Eagles will be announced on Tuesday late morning.
The Western Cape franchise will open their 2015 Super Rugby campaign against the Bulls in Pretoria on February 14. Their first home game is against the Blues at Newlands on February 21.
The 2011 and 2012 SA Conference winners will participate in three pre-season friendlies over the next three weeks.
Their first warm-up is against SWD before they face the Cheetahs in Cape Town on January 30 and the Boland Cavaliers on February 7.
Source: Sapa