The previous bad relationship between Kimmich and Tuchel was the main reason for Kimmich current difficult situation, when Tuchel was still coaching Bayern Muchen, Kimmich had asked management to sell him but instead this condition continues to this day where there is no clarity about Kimmich future in Munich, whether he will stay or whether he still wants to leave even though Tuchel is no longer coaching Munich, currently there are several teams who really want to recruit Kimmich from Munich considering that so far his performance has been quite consistent with Munich, Kimmich is one of Germany  best defensive midfielders, and make he is a realistic target for the big European teams at the moment, Liverpool, Manchester City, Barcelona, ​​Arsenal and PSG are the teams currently competing fiercely to get Kimmich signature, so Munich should be able to make it clear about what Kimmich wants at this time, because so far Kimmich still does not want to extend his contract in munchen which will expire in 2025.
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There are times a player would want to be sold out probably because the situation at the team isn't such that is really getting them to perform well because they have some issues with players or coach and sometimes the management but then the same player may be of a very good performance such that will cause the team ro be reluctant about selling him out .

This is exactly the case with kimmich. He has remained consistent with his performance despite the issues he has with the coach all the time he's been in Bayern last season, it's not doubt that other teams will be wanting him because of the kind of performance he's got and the fear of loosing him has made Bayern very reluctant,they now have a new coach he could try staying a season long again and see how well he would blend in with this coach maybe it may become the kind of environment he can still thrive in again.