Olympique Marseille have warned Arsenal off midfielder Stephane Mbia.
The Cameroon international was linked with the Gunners over the weekend as manager Arsene Wenger ponders replacements for want-away Cesc Fabregas.
But OM sporting director Jose Anigo said: "18 million? This is not the objective; Stephane Mbia is not for sale."
Bayern Munich have also been linked with Mbia.