I think PSG is already ready to play without Mbappe: Ramouche, Kolo Muani and Dembele must solve all the issues in attack. And by the way, I think PSG planned to spend this season without Mbappe, but they underestimated Real and completely lost the “silent bidding” because they did not receive any offer from Real at all. I'am rooting againct PSG (I don’t like moneybags and cheaters), but I see that now they have begun to develop in the right direction: they take young good players and make a team. Given their money, they will quickly assemble a top talented team according to the City scheme: if a player does not show his talent to the required extent at PSG, then they get rid of him and buy the next one. When you sell stars and buy stars in return, the FFP is fully respected, although in fact it is very similar to cheating. The sale of Neymar is super lucky for PSG (although perhaps everything was rigged), and the fact that they got rid of Messi too - now their salary fund can take several excellent players instead of an extinct star.
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But selling Mbappe (as PSG dreamed of) is another matter when Mbappe enters into a (secret) agreement with Real Madrid and leaves at the end of the season for free. Obviously, PSG was not happy with the second option at all. PSG wanted a completely inadequate amount for Mbappe (250 million) so now they will lose him for free. In this round, Real won a convincing victory.