Former Manchester City midfielder Dietmar Hamann has criticised the club's transfer policy, claiming that the instability caused by their extensive recruitment will prevent Roberto Mancini from mounting a title challenge.

• Robinho set for City return

City have spent vast amounts of money already this summer with Aleksandar Kolarov, Yaya Toure, David Silva and Jerome Boateng all moving to Eastlands. If, as expected, Mario Balotelli joins them then City's outlay will ...

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