New Paris Saint-Germain head coach Mauricio Pochettino says he is honoured to take charge of "some of the world's most talented players".
The former Tottenham boss signed a contract until June 2022, which includes an option for a further year, with the Ligue 1 champions on Saturday.
Pochettino replaces Thomas Tuchel, whose dismissal was finally confirmed on Tuesday after reports of his sacking initially emerged on Christmas Eve.
After his appointment was confirmed, Pochettino discussed his pride and ambition after returning to the club he played for between 2001 and 2003.
The prospect of managing the likes of Neymar and Kylian Mbappe was one about which he was already excited.
"I am really happy and honoured to become the new coach of Paris Saint-Germain," Pochettino, 48, told his new club's website
"I would like to thank the club's management for the trust they have placed in me.
"As you know, this club has always held a special place in my heart. I have wonderful memories, especially of the unique atmosphere of the Parc des Princes.
"I return to the club today with a lot of ambition and humility, and am eager to work with some of the world's most talented players.
"This team has fantastic potential and my staff and I will do everything we can to get the best for Paris Saint-Germain in all competitions.
"We will also do our utmost to give our team the combative and attacking playing identity that Parisian fans have always loved."
PSG chairman and CEO Nasser Al-Khelaifi felt the appointment meant Pochettino had returned to his footballing home.
"We are very pleased to welcome Mauricio Pochettino as first team coach," he said.
"I am proud to see our former captain returning to Paris Saint-Germain, as the club has always remained his home.
"The return of Mauricio fits perfectly with our ambitions and it will be another exciting chapter for the club and one I am positive the fans will enjoy.
"With the appointment of Mauricio Pochettino, Paris Saint-Germain is committed to continue to build and move the club forward over the coming years."
Pochettino, previously linked with the Real Madrid and Manchester United jobs, was sacked by Spurs in November last year after five impressive years in charge in north London.
Although he failed to win a trophy, he turned Spurs into regular top-four contenders and Premier League title hopefuls, while taking them to the Champions League final in 2019, where they lost to Liverpool.
Tuchel was sacked after an inconsistent start to the 2020-21 season despite having guided PSG to their first Champions League final in August, where they lost 1-0 to Bayern Munich.
PSG are third in Ligue 1, one point behind leaders Lyon, while Barcelona will be their last-16 opponents in the Champions League next month.
Pochettino's first game in charge will be on Wednesday, when PSG play away to Saint-Etienne in the league.