They may be in the quarter-finals of the Champions League, but PSG suffered their third defeat in the league, losing 3-2 to Bordeaux on Sunday.
Set-pieces may have been the key to PSG’s success at Stamford Bridge, but they would be their Achilles heel on Sunday afternoon.
Bordeaux started the game on the front foot, putting the pressure on PSG whenever they had the ball in midfield and not letting the side from the capital settle.
When they did get the ball, they pushed forward with purpose, pace and desire. In the early stages they nearly took advantage of a few PSG slips, shots from Isaac Kiese Thelin and Diego Contento forcing Salvatore Sirigu into fairly easy saves.
However, there was nothing the 'keeper could do about the opening goal on 18 minutes. A high, curling corner was played from the right and Lamine Sané jumped above PSG's skipper, Thiago Silva, and headed the ball into the far corner.
PSG's only chance of note in the first half came after 34 minutes when Thiago Motta slipped the ball through to Zlatan Ibrahimovic and the Swedish striker saw his effort saved well by Cedric Carrasso.
In the second half it was PSG's Swedish striker who got the game back on level terms. It all came from a Bordeaux defensive mix-up. Mariano couldn't clear the ball, Liverpool loanee Tiago Ilori tried to get it back to the 'keeper but it went wrong and Ibrahimovic managed to get his toe to the ball and poke it past the outrushing Carrasso.
Bordeaux took the lead again with 20 minutes to go and the PSG defence was all at sea. Wahbi Khazri’s shot sliced up into the air, Kiese Thelin was able to win a header in the heart of the PSG box and he guided it to the far post where Khazri was waiting to turn it in.
Ibrahimovic would equalise from the penalty spot with five minutes to go after Ezequiel Lavezzi looked to have forced contact with Mariano’s leg, but Bordeaux would not be stopped.
With just two minutes to go, Jaroslav Plasil picked up Mariano down the right channel, and his low cross found its way to Diego Rolan and the Uruguayan striker put it beyond Sirigu.
It was a well-deserved win for Bordeaux and it leaves PSG waiting for other results to go their way if they want to continue their title challenge this season.