Al-Khelaifi, however, told the Telegraph in an interview published on the eve of PSG's Champions League opener against Celtic in Glasgow that Neymar's arrival should be celebrated as it has also opened up Europe's premier club competition.
He said: "It's not been a good night so far for Celtic and a fan came on the pitch as well, confronted Mbappe".
The Atletico defender also said he felt that Real Madrid star Cristiano Ronaldo had been fortunate to win the Ballon d'Or a year ago, in a vote that saw Messi finish second and Atletico's Antoine Griezmann third.
"The most hard thing here is to cope with the rhythm and intensity they play with and, of course, with the support they have", PSG coach Unai Emery said.
"I think all the English teams will make it to the next stage, though Spurs are in a group with Real Madrid and Borussia Dortmund, so there is a question mark whether they can get out of that group".
It was a rough start to what will be a challenging Group B, against the side who aren't even the top seeds - Celtic still have to take on the giants of Bayern Munich.
Amazon denies Bloomberg report that Boston has headquarters edge
RFP applications for the headquarters are due by October 19, and a final site selection and announcement will be made next year. But global consumer chief Jeff Wilke objected and said the new location should be in the United States, the person said.
They continued this form tonight with their trip to Scottish champions Celtic, scoring three goals in the first half, effectively putting the tie to bed.
Neymar and Kylian Mbappé have joined Dani Alves in Paris, and all three are expected to start at Celtic Park. The Uruguayan picked up himself before neatly slotting home from the spot.
Cavani scores as PSG destroy Celtic.
"I'm interested to see how we play on the counter attack because this is a level where you have to stay calm".
The French newspaper L'Equipe had quoted the Slovenian as saying "if I want to be as popular as [one of his predecessors] Michel Platini, I know I have to exclude PSG from European competitions".
"Preparation is everything. We have prepared well all week but we must give Celtic the respect they deserve". Unai Emery, Paris Saint-Germain's manager, has admitted on the eve of the Champions League getting under way that he feels a "responsibility" to deliver success after a summer transfer splurge.