The Germany midfielder was asked about his situation in Turin after victory over Northern Ireland last night.
He said, "The future? I am still a player of Juve: Obviously I am not satisfied with the situation, but I continue to push on the accelerator and give 100% in training, I am trying to change my situation.
"No player is happy when he is not playing, and this is my situation in Turin in this moment. In the winter I will have to think about what makes the most sense to me, I see myself for sure at Juventus, but the situation must change..."