The Argentine coach succeeds the German Thomas Tüchel, whose departure was confirmed at the start of the week.
He signed a contract until June 2022.
Paris SG formalized on Saturday, as widely expected, the appointment of Argentinian coach Mauricio Pochettino, who succeeds the German Thomas Tüchel, whose departure was confirmed earlier this week.
"The Argentinian coach has signed a contract until June 30, 2022, plus an optional year," the reigning French champion said on his website.