Edin Dzeko says he is "infuriated" by Wolfsburg's refusal to negotiate with Juventus and has accused the Bundesliga club of failing to keep a promise to let him leave this summer.
Dzeko is one of Europe's most in-demand strikers after topping the German goalscoring charts last season and Juventus have made a concerted effort to bring him to Turin, so much so that they cooled their interest in Serbia winger Milos Krasic for a time.
Manchester City have also admitted an interest in Dzeko but the striker has left Wolfsburg in no doubt that he wants to move to Serie A this summer.
"I'm infuriated with Wolfsburg," Dzeko told Sport Bild. "They broke their promises made last summer. I was asked to stay for another year and, in case Milan were still interested in me, I would be released.
"This summer the Rossoneri looked for me again, but they weren't the only ones. Juventus have done and are doing everything to have me, but every offer is not seriously considered.
"Dieter Hoeness told me that the agreements made last season are no longer valid, because they were made by coach Armin Veh and manager Frank Aehlig. I want to play for an important club and the Wolfsburg directors know that.
"I have clearly stated that Juventus represent the best option for me. My contract clause of €40 million should not have been an obstacle to my sale, it was introduced last summer to look after the club.
"My agent confirmed that Wolfsburg have received many offers close to this sum from Italian, Spanish and English clubs. I had the opportunity to leave and it was denied to me. I hope by August 31 this can be sorted out.
"I know Bayern Munich also showed interest, but I have other plans and see my future in a different league, certainly not the Bundesliga. If I cannot decide when to leave, they certainly can't stop me refusing offers that do not entice me at all."