I still can't say for sure that will happen, but Mount has had a difficult time with Chelsea and has been under an incompetent coach. Currently he has not shown the maximum performance we expect.
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So you assume Mason Mount did not grow well under an incompetent coach (Thomas Tuchel and Graham Potter). So I will look forward to his debut with Manchester United under coach Erik ten Hag.
But if he is still in the same situation as he was at Chelsea, then it is not Tuchel and Potter who are incompetent, but the players themselves who are not so talented.
Now it's actually just a matter of seeing Mount's adaptation because of course adaptation and having good communication with other players and coaches will also be very important for Mount because that's how he can increase his confidence and performance again this season at Chelsea.
Mount can still restore that but of course it takes more effort in this case so that he can work well at Manchester United because this is also apart from proving that he is indeed a good player and his performance has decreased due to some conditions that are not in line at Chelsea besides that, this is also a proof for his considerable price.