Liverpool are chasing the youngster and are prepared to meet Can's £10 million buyout clause.
"For Emre, there are inquiries from England, Spain and Italy. Nothing is decided yet," said his adviser Reza Fazeli.
Bayer chief Michael Reschke insists they do not want to lose Can this summer.
"Basically, we want Emre stays with us."
For the big stories and the banter follow us on Twitter: @tribalfootball