Paris Saint-Germain coach Mauricio Pochettino believes their Champions League exit is the reason for their poor form in Ligue 1.
PSG are on a poor run of results, losing 3-0 to Monaco on Sunday.
They are only 11 days apart from one of their most disappointing results in recent years, losing 3-1 to Real Madrid and going out on aggregate, despite dominating most of the tie over two legs.
Pochettino said after the Monaco result to reporters: "I'm disappointed with the way we started the game. It's unacceptable. At this level, you can't start a game the way we did.
"We can be happy going into half-time at only 1-0 down because they could have had two or three.
"In the second half, it was better, we created chances but we paid for our first half. I think it's really not acceptable to start a match the way we did."