Paris Saint-Germain's struggles in the new Ligue 1 season deepened on Friday as they fell 2-1 to AS Monaco at the Parc des Princes. The reigning European champions, who have yet to secure a win this season, initially took the lead through captain Marquinhos but were unable to hold on against a resilient Monaco side.

Marquinhos opened the scoring for PSG in the 31st minute, converting a cross from Khvicha Kvaratskhelia with his chest. The home crowd, witnessing their team's first match of the season at home, was buoyed by the early lead. However, Monaco, currently sitting atop the league table with three wins from three matches, responded strongly in the second half.

Flavio Nazinho equalized for Monaco in the 58th minute with a header from a Jordan Teze delivery, showcasing the visitors' determination to turn the match around. Just 14 minutes later, Belgian winger Stanis Idumbo secured the win for Monaco, capitalizing on a pass from Aleksandr Golovin to beat PSG's goalkeeper Matvey Safonov at the near post.

This defeat marks a disappointing continuation for PSG, who now find themselves with just two points from their opening three matches, seven points behind league leaders Monaco. The club had previously drawn their first two matches against Rennes and Lille, both of which saw them come back from two goals down to secure draws.

Before the match, PSG announced that head coach Luis Enrique had signed a three-year contract extension, keeping him at the club until 2030. Despite this commitment, the team's performance has raised concerns as they prepare to defend their Ligue 1 title and embark on their Champions League campaign next week against Slovan Bratislava.

Monaco's victory comes in the wake of a tumultuous week for the club, which saw them miss out on a significant transfer deal. American striker Folarin Balogun, who was expected to move to Everton for £40 million, backed out at the last minute, leaving Monaco in a difficult position after also withdrawing from a deal to sell Lamine Camara to Chelsea.

The match also saw the introduction of PSG's high-profile signings Ousmane Dembele and Ferran Torres, but their efforts were not enough to change the outcome. Torres had a late goal disallowed for offside, while Dembele was denied by a brilliant save from Monaco's goalkeeper Lukas Hradecky in stoppage time.

As the season progresses, PSG's inability to secure victories will be a growing concern for fans and management alike, especially with the Champions League looming on the horizon.