Galtier fielded Lionel Messi, Kylian Mbappe and Neymar all together in his starting line-up for the first time since the World Cup as PSG took to the field wearing their fourth kit with players' names in Mandarin to mark the Lunar New Year.
Thieves are believed to have taken "a significant amount of jewellery and money" from the 29-year-old Italian midfielder, the sources said without giving further details.
Giorgio Chiellini believes it will be "beautiful" to end his international career against Argentina at Wembley on Wednesday after leading Italy to Euro 2020 glory at the London ground last year.
Novak Djokovic showcased some football skills along with PSG's Neymar Jr and Marco Verratti in Monte Carlo.
Ligue 1: Lionel Messi returned, another marquee signing Sergio Ramos scored as Paris Saint-Germain cruised to a 4-0 victory over Reims on Sunday to restore their lead to 11 points.
Paris Saint-Germain face Club Brugge in their Champions League opener on Wednesday without Marco Verratti after the midfielder picked up an injury during the World Cup qualifier window with Italy.
Paris Saint-Germain shared snippets from their training session and it had a first glimpse of the Lionel Messi-Kylian Mbappe combination.
Marco Verratti will miss the first leg of Paris Saint-Germain's Champions League quarter-final against Bayern Munich next week after the French champions announced on Friday that he had tested positive for Covid-19.
Paris Saint-Germain will miss midfielders Marco Verratti and Leandro Paredes in their Champions League opener against Manchester United on Tuesday.
The coronavirus crisis has left Paris Saint-Germain apparently weakened both on the field and off it.