first_img Mbappe, 18, joined PSG this week on loan, although they have an obligation to buy him next summer for 180 million euros.  IN SPORT.ES Neymar became the most expensive player in the world when that deal was completed and Mbappe will become the second most expensive when the deal become permanent next year.  CEST Mbappé lucirá el número 29 en el PSG Upd. at 20:08 TV3: Barça had the chance to sign Mbappé Sport.es RELATED STORIES 02/09/2017 The teenager was also tracked by Real Madrid and FC Barcelona, although neither Spanish club made a concrete offer for the forward.  The France star is the club’s second biggest signing of the summer, following the arrival of Neymar from Barcelona for 222 million euros.  Paris Saint-Germain’s latest signing Kylian Mbappe will wear the No.29 shirt at the Parc des Princes, the same number he had previously worn at Monaco. last_img