Fenerbahce will be without Anthony Musaba and Ederson when the Turkish side travel to Austria to take on Sturm Graz in the second leg of their UEFA Champions League third qualifying round tie on Tuesday.
The Istanbul club said Musaba had been left out of the travelling squad because of pain, while Ederson would not make the trip after coming down with a viral infection.
Fenerbahce added that the medical team was closely following the condition of both players, although no further details were provided regarding their recovery.
Their absences come as Fenerbahce prepare to face Sturm Graz away from home in the return leg of the Champions League qualifying tie.