Out-of-favour defender Mats Hummels has hinted at a lack of open dialogue in the Germany squad ahead of next month's World Cup qualifiers.
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"In the Germany team, they don't like to hear criticism," Hummels told magazine Kicker with Germany coach Joachim Loew set to name his squad on Friday for October's qualifiers against the Republic of Ireland and Sweden.
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"I don't think it's bad if you criticise me. In return I'll speak my mind if I find something less than perfect."
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After a poor performance in Germany's 3-all friendly draw with Paraguay in August, Hummels was on the bench for Germany's 3-0 win over Austria in Munich earlier this month, then the 3-0 away win at Faroe Islands in World Cup qualifiers.