The 25-year-old sustained the injury attempting a back-heel in the Paris Saint-Germain FC penalty area which forced him off in the 58th minute. "No one hit me, I injured myself," Olic said. "I don't think I'll be ready for the match against Bulgaria which is a pity as I was really looking forward to it. I felt that I was in excellent form before this injury."
Olic's replacement, Sergei Semak, scored the opening goal six minutes later and won the penalty from which Vágner Love sealed the Group H victory in the 77th minute.
"Olic has more than likely strained a muscle in the back of his thigh," said CSKA doctor Oleg Ipatenko. "He will undergo further tests on Thursday but I think he will be out for around two weeks." CSKA's next Champions League game is against Chelsea FC in London on 20 October.
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