The Ligue 1 leaders, who were down to 10 men after Achraf Hakimi was dismissed early in the first half, were startled by Lorient’s 3-1 triumph at Parc des Princes.
PSG, who has now dropped nine games throughout all competitions in 2023, is still in first place in Ligue 1 with 75 points after 33 games. However, if Olympique Marseille defeats Auxerre later on Sunday, PSG’s lead may be reduced to five points. Lorient rose to tenth place.
In the 15th minute, Lorient took the lead thanks to some deft right flank interplay that exposed the PSG defence and allowed Romain Faivre to cross the ball into the box for an open Enzo Le Fee to score.
After Hakimi received his second caution for a late challenge on Darline Yongwa, PSG lost a man five minutes later. Kylian Mbappe then equalized inexplicably after Yvon Mvogo made a costly mistake in goal.
Mbappe scored into an empty net after the Swiss goalkeeper collected the ball
Mbappe scored into an empty net after the Swiss goalkeeper collected the ball and tried to resume play by rolling it forward while walking back right beside him.
Le Fee and Faivre, who were in control of the game while Lorient had the man advantage, forced PSG to forfeit. When Faivre danced into the box, Yongwa scored the second goal to make it 2-1 with a deflected cross from the byline.
In the face of boos from the home crowd, PSG fought valiantly to score an equalizer. Sergio Ramos headed over from a corner kick by Lionel Messi, and Mvogo saved a header from Danilo Pereira with his face.
Bamba Dieng had a late goal disallowed for offside, but a minute later he scored Lorient’s third goal to secure all three points when he got a one-on-one with Gianluigi Donnarumma, who had previously stopped Dieng’s initial shot.