Germany DFB vice-president Ralph-Uwe Schaffert has blasted Ilkay Gundogan for his performances for the national side.
The German national side have endured some mixed results in the past few months as they continue preparations for the European Championship next year.
Gundogan has been a consistent performer for the Catalan giants but his commitment for the four-time world champions has been called into question.
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"Gundogan strangely plays outstandingly for the club and then plays in such a way for the national team that one can come to think: Has he sent his twin brother, with less talent? I don't understand it," Schaffert told Hannoversche Allgemeine.
Schaffert also expressed doubt about the national side's chances at the Championship next year, which will be hosted by Germany.
"I have many doubts regarding next year's European Championship," he added
"In terms of potential, we can go far. But aspirations, expectations and reality are so far apart at the moment that it is absolutely inexplicable to me. I don't think it is due to the coach.
"I have the feeling that quite a few of the players who are currently on the pitch believe that they can go out on the field with maybe 85% of their possible commitment, and then you have to discover that this is no longer enough against Turkey and Austria.
"I don't even want to imagine what will happen if we play against France or England with this attitude.
"Maybe we will no longer need only those who are very talented, but also those who are willing to roll up their sleeves. The best example of how to do this was given by our under-17 when they won the World Cup."
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