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.
In my opinion, Manchester United should have sold any of their current midfielders as a way to complete the Manuel Ugarte deal, Casemiro and McTominay cannot strengthen the midfield as they would like, in fact, Casemiro has not been in the best form since last season, and Manchester United should have considered selling him when the Saudi team request for him because it looks like Casemiro's career has ended in Real Madrid, this isn't the same Casemiro we knew from Madrid.
Regarding Saudi Arabia's interest in Casemero it seems that the rumor has died down the Saudi Arabian club seems to be no longer pursuing this player because the player has not shown any interest in leaving so it is clear that MU has not been able to sell this player to get much profit.
Source: https://twitter.com/DeadlineDayLive/status/1821653359553642731?t=BSJQ6Ri-GLItnyXSiVfenQ&s=19