Achraf Hakimi has joined PSG from Inter Milan on a five-year contract.
The 22-year-old arrives in Paris having won the 2020/21 Serie A title under Antonio Conte in his only season at Inter last term.
The Morocco international was also a transfer target for Champions League winners Chelsea, who had matched PSG's £51.3m transfer offer for the defender.
Upon his arrival in Paris, Hakimi said: "I feel a lot of pride today. After my experiences in Spain, Germany and Italy, Paris Saint-Germain offers me the opportunity to discover a new championship under the colours of one of the most prestigious clubs in the world.
"I can't wait to meet my new team-mates, the fans and feel the extraordinary fervour that reigns at the Parc des Princes.
"I share the same very high ambitions with the staff and the players and will do everything to give my club what it expects of me."
