Here's a good article from an Italian paper:
Paulo Dybala doesn't want to leave Juve. But Juve have decided to sell him. And he is close to a deal with Manchester United, with or without Romelu Lukaku. That's why the Argentine must in any case listen to the Red Devils, before saying yes or no. In fact, one of his trusted men, Jorge Antun, arrived in England in the last few hours. He was usually taking care of his commercial interests but is now appointed by the Dybala family to start negotiations with United.
Dybala's position at the moment hasn't changed. On Thursday he will be in Turin and he will immediately want a direct meeting with Maurizio Sarri, despite the fact that the club has discarded him. The Premier League has never been his ambition (project/dream) and he would like to stay at Juve and eventually wait and see for something different to develop on the international market, whether it's PSG or one of the great clubs from Spain. In the meantime, Jorgen Antun has flown to London to listen to the United's technical and economic proposal. Ole Gunnar Solskjaer is a big fan of him, and United's offering a higher engagement than he currently receives at Juve. But for now all this may not be enough.
The fact that Antun is in conversation with United is further confirmation of how close the agreement is between the clubs. Whether it's a straight swap with Lukaku or a swap and cash (of about 15 million) or it could be a straight Dybala sale to Old Trafford without Lukaku moving the other way. Juve has decided to get rid of the player, Dybala's signature is missing. His response could affect the market in half of Italy.