Since Manchester United couldn't have a good performance so far during the last season now they want to improve the team and especially the midfielders, that's why they decided to stop working with Casemiro and McTominay while these two players are both key players, and effective for Manchester united but they won't stop working with both players and hire some other players instead and they think Manuel Ugarte but this player too expensive and PSG asked 65 million euros for him that's why Manchester United thinks about Sander Berge the player Burnley.
Currently Casemiro is still part of Manchester United, but it cannot be denied that indeed for now Casemiro still seems unable to develop under Ten Hag and we can see how Casemiro's performance in pre-season matches actually tends to be mediocre and can even be said to be quite bad for a midfielder who has experience.
He can still compete but it looks like Manchester United is not the right place for Casemiro because after his prime in Madrid it seemed to disappear when Casemiro was at Manchester United and I don't think it's too good to force that and Manchester United's decision to look for other options could be a good thing. Even if in the end Manchester United don't look for new players I think it would be very good to try Toby Collyer to the senior club because I feel he has quite good potential if you see his vision in the game in pre-season matches.