This is from Catalonian daily Sport that covers everything related to Barca.
https://www.sport.es/es/noticias/barca/chelsea-lanza-jong-negociaciones-azpilicueta-14024990
Chelsea asked for De Jong during the negotiations for Azpilicueta and Marcos Alonso, the two priority full-backs for Xavi.
Between Barça and United there is no agreement yet because MU offered 60 plus 20 in add-ons while Barca want 80 million guaranteed .
Chelsea offered around 60 million euros plus Azpilicueta and Marcos Alonso. The Blaugrana club has only listened, but prefers cash at the moment without players involved.
Chelsea would be in a position to close an agreement with Frenkie de Jong. It has been known for weeks that Tuchel had contacted the footballer's entourage to comment on the possibility of signing, but nothing has changed until the final negotiations between clubs have begun. The coach sees himself capable of convincing De Jong because he would live in London, and play in the Champions League in a project that can compete for all trophies.
Here's an interesting bit for MU fans.
"At Barça, they trust that
Chelsea's move can warm up a Manchester United team that considers De Jong an absolute priority to lead their project."
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Sounds like another Barca propaganda piece in order to put pressure on MU to pay more for the player. De Jong's transfer can really ease their financial burden and allow them more freedom for further moves.