Dzeko, who joined City from Bundesliga side VfL Wolfsburg in a deal worth £27 million in January 2011, is viewed as a potential replacement for Bayern-bound Robert Lewandowski at Signal Iduna Park.
Wolfsburg are also keen on the Bosnia international but the 27-year-old’s £150,000-a-week wages would probably prevent such a deal from going through.
City boss Manuel Pellegrini opted to keep Dzeko at the Etihad Stadium in January to bolster the club’s chances of winning the quadruple (Capital One Cup, English Premier League, FA Cup and UEFA Champions) and understandably so.
However, it is believed Pellegrini would be willing to allow the Bosnian ace to leave Manchester in the summer, with his current deal set to expire after next season.
Barring another injury to Sergio Aguero, Dzeko — who will represent Bosnia at the World Cups finals in Brazil this summer — is expected to be the Capital One Cup winners’ third-choice striker for the rest of the season, with Stevan Jovetić a more than capable fourth option.
Dzeko could cost Dortmund, Inter or Wolfburg anywhere between £15 million and £20 million, with the Serie A side also chasing Bayern Munich’s Mario Mandžukić, who has been linked with a summer move following the club’s capture of Lewandowski.
Casillas to see out contract
Real Madrid goalkeeper Iker Casillas has insisted he will see out his current deal at the Estadio Santiago Bernabéu despite speculation linking him with a summer move away from the Spanish capital.
The Spain international, 32, has been in-and-out of the Madrid first-team this season and has yet to start a league match under new manager Carlo Ancelotti.
Casillas had kept nine consecutive clean sheets before conceding a 90th-minute screamer to FC Schalke 04 talisman Klaas-Jan Huntelaar at the Veltins-Arena last week.
“I’m thinking more and more about what I’ll do when I quit playing. I’d like to stay involved in football and help the club, if the circumstances allow it,” the 32-year-0ld Melodia FM.
“I can play on until I’m 40. If you look after yourself as a goalkeeper, you can carry on until that age.
“I’d love to be able to keep playing for Real Madrid until I’m 40, but a time will come when that’s not possible. I’ll consider my future at Real when my contract expires.”
Casillas has made over 600 competitive appearances for Real Madrid and earned a Spain-record 150 international caps.