Bayern chairman Uli Hoeness is wary of disrupting players despite offering hints to potential targets.
He said: "A holding midfielder of class would just be the icing on our cake right now.
"Still, we will not pay out the release clause in terms of Martinez. And a transfer of (Lars) Bender would just be a matter of whether we receive a certain signal from Bayer Leverkusen.
"We are not going further to submit offers. Going further ahead in this would not be serious. We are not out to cause unrest at Bayer Leverkusen."