PSG's formal offer to Messi already on the table: just missing details

There is a formal offer from PSG to Messi and also a pre-agreement. The newspaper 'Marca' assures the first and 'RMC Sport' guarantees the second. According to these media outlets, the final advances were made on the morning of 8th August, when the Argentinian said goodbye to Barcelona in a press conference and assured that he had done everything possible to renew his contract.
A meeting between the Argentinian's lawyers and French club's representatives was key. In it, the positions were brought closer in a more agile way than if another way had been used to undertake the talks. That is why there are only a few details left for the former Barca player to appear at the Parc des Princes as their new star.
It had been conjectured that the winger would travel to France on Sunday 8th, although everything seems to indicate that this will not be the case. He may do so on Monday 9th or Tuesday 10th, without haste so that everything goes well in his medical examination and in the preparations to present him to the fans with an event befitting his status.
His move to Mauricio Pochettino's PSG could trigger Mbappee to sign for Real Madrid because the Parisian board would have to manage a salary cap of the most exuberant kind. Maintaining the emoluments of Messi, Neymar, Sergio Ramos and the rest of the stars who have filled the club's squad is very difficult.