French star Kylian Mbappé, currently with Paris Saint-Germain and formerly of Monaco, preferred to move to Barcelona over Real Madrid in the summer of 2017. Mbappé transferred from Monaco to Paris Saint-Germain at the end of the summer of 2017 on loan with an option to buy. According to the French network "Le Sport 10," Barcelona attempted to secure Mbappé's signature in 2017 following Neymar da Silva's move to Paris, taking advantage of the buyout clause in his contract, which was worth 222 million euros.
It was noted that at that time, Mbappé favored a move to Barcelona over Real Madrid, believing he could get more playing time with Barça compared to Los Blancos. However, after careful consideration of the deal, Barcelona decided to halt negotiations with Mbappé and chose to sign French winger Ousmane Dembélé, who was playing for Borussia Dortmund at that time.
It is worth mentioning that Mbappé's contract with Paris is set to expire next summer, and several reports have suggested that he has an agreement to move to Real Madrid for free.