Mou was asked for an update on Chelsea's pursuit at today's media conference.
"Nothing has changed. At a certain point I agree with [Alan] Pardew. The transfer window goes too far - the third, fourth week of the season. That is too far," he replied.
"But at the same point gives everyone a chance to be in the market when they are winning or losing points. We are trying to bring one more player and we will try until the end."
On Anzhi striker Samuel Eto'o, he added: "We have a Plan B and a Plan C. But it is difficult for me to talk about other players."
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