The 20 year-old attacking midfielder remained with the Argentine club on a temporary basis after completing a move to PSG in July, but will now start working with his new team-mates under Unai Emery.

Lo Celso, who played for Argentina at the 2016 Olympic Games, has signed a contract until June 2021 with the Ligue 1 champion and brought the curtain down on his time in Rosario with a superb solo goal in a 2-0 Primera Division win over Belgrano earlier this month.

"I am very excited to have signed for PSG," Lo Celso said. "I am going to join one of the biggest clubs in Europe, with a squad full of great players, including my compatriots Angel Di Maria and Javier Pastore. I hope to follow in their footsteps and to become an important player for PSG.

"I would like to thank PSG for the faith shown in me and my former club Rosario for helping me fulfil my dream of becoming a professional footballer."