Borussia Dortmund have confirmed their interest in signing Edin Dzeko but insist they have not reached a deal with Manchester City for the striker.
Dzeko has scored 13 goals so far this season, but 18 of his 35 appearances have been as a substitute and he is believed to be growing tired of his lack of starts.
The striker has made no secret of his desire to play in Germany again, while manager Roberto Mancini has revealed he would be willing to listen to offers for the 26-year-old if he expresses a desire to leave.
Borussia Dortmund general manager Michael Zorc has confirmed the Bundesliga side are keen on signing the Bosnian, but admits the transfer fee could prove a sticking point.
"There should be little doubt about Edin Dzeko being a top-class striker," Zorc told Sport-Bild weekly.
"He is a great forward and a player one should be keen on. However there is also still somewhat of an economic aspect.
"It would be down to pure maths because Edin Dzeko is under contract at Manchester City beyond the end of the season."