The 25-year-old has also started just once in Serie A this season, and he made it clear a January move was not out of the question.
“I think you should never say never," he told Bild when asked about a potential return to Germany.
“I'm not happy with the situation in Turin, and it has to change somehow. We have to find a solution."
Can is being linked with Borussia Dortmund in the German press.
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