But Tuchel thinks, that as a product of the Chelsea academy, Christensen 'shouldn't forget where he comes from'.
"The situation of the club was pretty sure I think I gave you an honest statement that he is in exactly the right place for his journey," Tuchel said of Christensen.
"That he could continue with this club and become the defender that he can be, the real personality and the playing minutes figure that he wants to be.
"In my opinion, he shouldn't forget where he comes from, where his education comes from, where is home and that's just my opinion. He needs that kind of environment to bring the best out of him.
"That's just my opinion and I gave it some weeks ago but the talks in autumn and the summer were constant talks. We are in exchange with our players of course. I hope that my talks didn't make him want to leave but I don't think so.
"You cannot take these things personally. If he decides to take his career elsewhere, it is his decision. We understand it and we don't need to agree. We will not take it personally.
"As long as he is our player, he is our player and I will not stop demanding from him. He needs to be fully, fully committed, this is what we expect and have experienced. You will have to ask him about his decision and what the reasons are for his decision."