Paris Saint-Germain president Nasser Al-Khelaifi has vowed that there will be "big changes" at the club this summer following their performance in last season's Champions League.

The capital outfit romped to the domestic title by a 29-point margin, as well as scooping the Coupe de France and the Coupe de la Ligue, but Al-Khelaifi was left incensed after his side dropped out of the Champions League to Manchester City at the quarter-final stage.

Speaking to Le Parisien, Al-Khelaifi said that everyone at the club was "responsible" for the "failure" and refused to rule out sacking manager Laurent Blanc.

"I will not speak of particular cases," he told the newspaper. "Big changes will happen. A new cycle will start, you'll see. In any case, if we continue like this on all levels we will not get there. I'm just an observer and I analyse the results and competencies of all: the players, the coach, the management. We need change. I have supported him for three years. Now we must think about what we will do next season to build a stronger team in Europe.

"Honestly, I think we failed this season despite trophies at a national level. We did not meet our European target, so it's a bad season. I've been here for five years and this is the first time we have had this sense of failure. It's not just the fact of having lost in the quarter-finals of the Champions League that makes me say that, it's how it happened.

"I am very disappointed. We were not mentally ready and we are all responsible. This elimination is the worst since I have been in Paris. It is very difficult to accept.

"I repeat, this is the first time we have failed and I have to ask myself the right questions: should I chance my leadership? Should I change people? Should I change system? Should I change the players? I will reflect and wholesale changes could happen. You will see when the time comes. It will not be easy for everyone, but it's time to change. After five years, you must start a new cycle."

Blanc has been at the Parc des Princes since 2013 and has won the Ligue 1 title in each of his three seasons in charge.