South Africa flanker Schalk Burger remains in hospital as he continues to recover from bacterial meningitis.
The 29-year-old was struck down by the illness following a calf injury, but it had been expected that he would be released from hospital last week.
However, according to Sky Sports News, no return date has been set for the former World Cup winner.
Burger hasn't played for the Stormers for over a year following a succession of knee and calf injuries.