Bayer Leverkusen chief Rudi Voller concedes young midfielder Kai Havertz is generating huge transfer interest.
Sport1 has reported Bayer expect to sell Havertz, 20, for about 100m, next summer.
The youngster is being chased by Bayern Munich, Barcelona, Real Madrid, Manchester City, Chelsea, Manchester United, Liverpool and Arsenal.
And Voller revealed: "It's no secret that there were a couple of phone calls and a great deal of interest. I then spoke directly and completely friendly with Karl-Heinz Rummenigge (Bavarian CEO). (He) completely understood that we didn't (wanted to sell).
"Bavaria was not the only club that asked us about Kai Havertz."
