The Ligue 1 champions were unhappy with the officiating of Deniz Aytekin , especially with his decision to award Barcelona a penalty in the 91st minute.
That was only one of the eight incidents PSG were unhappy with it. They also pointed to the penalty that wasn’t awarded for Mascherano’s foul on Di Maria.
They also highlighted Neymar escaping a red card for stomping on Marquinhos and Pique escaping a second yellow for pulling Edinson Cavani.
UEFA confirmed PSG’s complaint, saying: “UEFA has received a letter from PSG relating to the refereeing of their match against Barcelona. We have no further comment to make on this.”PSG has lodged a complain about the refereeing of the loss to Barcelona, sending a five-page letter to UEFA.
Barcelona scored three goals in the final seven minutes to come back from 4-0 down in the first leg to win 6-5 on aggregate.