Papic has been missing from the Eagles bench as they beat University of Pretoria 1-0 last weekend and then lost 3-1 to AmaZulu on Wednesday, missing the opportunity to move above Stellenbosch FC, who also lost 1-0 yesterday.
Papic, meanwhile, has confirmed his return to Serbia but could not reveal details of his illness pending a doctor's appointment set for Friday.
"Sorry, I'm in Serbia. I'm sick but I will only see the doctor tomorrow. Let's talk next week," he tells this website.