Bayern Munich's general manager Uli Hoeness has again insisted that French star Franck Ribery will not be sold this summer.
Chelsea, Barcelona, Real Madrid and Manchester United have all been linked with the 26-year-old playmaker, but Bayern are adamant that Ribery is going nowhere.
Hoeness' latest comments came following discussions with newly-appointed coach Louis van Gaal.
He told the Abendzeitung newspaper: "Louis van Gaal really wants to keep him. We will not let Ribery go.
"Most clubs only ended their season recently and, when the players go on holiday, the bosses start with their planning.
"There will be enquiries for Ribery in the next four to six weeks, I'm sure.
"But we have not had any decisive enquiry and we are not interested in any of the rumours in the English press.
"We will be polite, but we will not negotiate. We are not going to celebrate on the telephone when somebody offers a certain amount."
Koln have admitted there was little that they could do to stop coach Christoph Daum leaving to take charge at Turkish club Fenerbahce.
The 55-year-old has agreed a two-year contract with Fener, having had another 12 months of his deal with Koln still to run.
General manager Michael Meier admitted: "I told him that we would do all we could to keep him, but we had no chance.
"He told me he had already signed a new contract. He said that it was a sensational offer financially and he could not forgive himself, nor would his family forgive him, if he said no.
"Christoph received a four-year contract which was so lucrative that it made him weak at the knees. Furthermore, he can get to work at a top European club."
Defender Pedro Geromel has provided Koln with a timely boost after agreeing a two-year contract extension. The Brazilian centre-half is now contracted to the Rhein-Energie Stadion outfit until summer 2014.
Meanwhile, Borussia Monchengladbach have confirmed the appointment of Michael Frontzeck as their new head coach on a two-year contract.
The 45-year-old, who enjoyed three spells with the club as a player, succeeds Hans Meyer at Borussia Park.
Frontzeck was recently axed by Arminia Bielefeld following their relegation from the top-flight of German football, having started his coaching career at Alemannia Aachen.