Ronaldinho has returned to the French capital to spend the weekend with his old team, which will culminate in him watching the Monaco game at Parc des Princes.
The match is a vital one, with champions PSG sitting three points behind Radamel Falcao & Co at the top of the table in an enthralling title race that also involves Nice.
Ronaldinho arrived in Paris on Friday evening after a flight from Rio de Janeiro, where he was greeted by supporters.
The 36-year-old was then shown around the stadium and conducted an interview with the club's TV channel, before returning on Saturday to meet the first-team squad as they prepared to face Monaco.
Ronaldinho was presented with a signed number 10 shirt and posed for a photo with the whole squad, a shot which contained the likes of Edinson Cavani and Angel Di Maria.
He also took separate photos with many of the players, including captain Thiago Silva and the Brazilian contingent.
"Paris is a special club for me, as it was here that I launched my European career," Ronaldinho said.
"I have a lot of respect and love for this club. Of course it's special for me to come back to where it all began.
"I hope to see a really good match here, a real spectacle out on the pitch. I don't how it will play out but I can't wait to see the fans out in force at the Parc des Princes."
PSG defender Thomas Meunier tweeted an image of him meeting Ronaldinho and wrote: "It is thanks to players like him that football is part of my life. Thank you."
Ronaldinho is the second major former star to visit in the last week after David Beckham returned to Paris.