Paris Saint-Germain striker Kylian Mbappe says that he has had trouble sleeping since the club's defeat to Manchester United in the Champions League on Wednesday.

Mbappe, 20, failed to score as United came back from a 2-0 first-leg deficit to win 3-1 in Paris and advance on away goals.

Marcus Rashford netted a late penalty, awarded after a VAR review for handball by defender Presnel Kimpembe. And Mbappe says it has hit the squad hard.

"I am stunned -- there are no words," he told TF1's Telefoot. "I have not been able to sleep and I think it has been the same for everybody else. It is difficult. We worked hard to reach that point and now we are out. We are disappointed. Football goes on. We will try to rally and finish the season.

"Honestly, it was our goal -- we were working towards it each day. The supporters were with us too. The stadium was full, the fans did their job and got behind us -- it was a truly magical atmosphere and we spoiled the party. We did not want to ruin it, but we did."

"It is complicated, particularly after what happened, and there are many people who doubt us. However, I still believe in this project -- I am sure we will do something good for the club with the fans' support. I hope that they continue to get behind us. They have always been in the right. Now, we have to do some things.

"I think that, together, we can start to move in the right direction again and ask the right questions. I think that we can achieve something good in the future. We will keep working because that it is all that we can do. We will try to improve day after day, as when you get eliminated, you are missing something -- you are not up to it. Now, we have to finish the season in the best way and prepare better for next year."

Mbappe, who has been linked with moves to Real Madrid and Barcelona, insisted that his future had not changed despite PSG's failure to get to the quarterfinals of the Champions League once again.

"Yes, I am sure to be here next season," he added. "With or without what just happened, it was already set. With all of the problems that this elimination will cause, it is pointless adding my personal situation to that. This way, it is clear and accurate."

Meanwhile, Kimpembe says complacency was to blame for the French champions' shock defeat.

"Compared withe the first leg win at Old Trafford, I would say that there was a lot of complacency -- it was not really the same PSG in the second leg and it felt that way," he said on YouTube channel Bros. "We lost our grinta from the first leg that made the difference. It is not past experiences that make us stressed, in truth, it is because we took this game lightly. It will really be something that never happens to me again.

"Pain like this, it is too much -- it has to stop! We will stay hungry and that is the most important thing for me. We will lose again, of course, but losing matches like this is over -- I do not want it to happen to us anymore. We must raise our heads and move on, which will be complicated, but we still have Ligue 1 and the Coupe de France. These remain important to us, although in life and football, everybody thinks that winning these trophies is easy -- it never is."

PSG became the first team in Europe's elite club competition to be eliminated after winning 2-0 away in the opening leg. And it came two years after they were knocked out in the round of 16 by Barcelona after losing 6-1 at Camp Nou following a 4-0 home victory in the first leg.

"I am Parisien. If I had not been a football player, or unable to be on the pitch on Wednesday, I would have been in the stands or in the Auteuil end to support the team," he added. "Me, I feel very hurt, and I feel what the fans feel. I can see the fans' anger. I understand it and I accept it.

"My feelings since Wednesday are lots of disappointment and rage. Of course, I am still not over it -- just like the fans and the rest of the team. To get over it is going to be complicated. It is a match that will inevitably stay in our minds, but we will have to forget for the rest of the season."

Information from Reuters and PSG correspondent Jonathan Johnson was used in this report.