Without world champion Lionel Messi (special leave) and suspended Brazilian Neymar, Paris St. Germain suffered their first defeat of the season in Ligue 1.
In the direct pursuit of RC Lens, the still prominent ensemble around World Cup top scorer Kylian Mbappe lost 1: 3 (1: 2).
20-year-old striker Hugo Ekitike (8) scored the only goal for PSG, who after 17 games are just four points clear of the Giallorossi, who won their only French championship in 1997/98.
Przemyslaw Frankowski (5th), Lois Openda (28th) and Alexis Claude-Maurice (48th) scored the goals for the underdog from the North.
