PSG are favourites to win Ligue 1 for a fourth consecutive season, but they showed signs of frailty on Friday night as they drew at home to Bordeaux.
Under the lights, Laurent Blanc's side stuttered to a draw in a game that had everything: A red card, free kick and goalkeeping howlers. Here are three main talking points from the eventful game.
Cavani is on fire
The Uruguayan is PSG's record signing but has never actually become the true king of Paris during his time there, with Zlatan Ibrahimovic instead stealing the limelight with his goals and off-field antics.
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Their talismanic Swedish striker was rested on Friday after suffering an abdominal injury while on international duty, so the stage was once again set for Cavani to continue his impressive early-season form.
The Uruguayan did just that as he scored another brace to add to his previous double against Monaco a week earlier. In Ibrahimovic's absence, he seems liberated and expressive as he has taken up his favoured central position up front for PSG.
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Doubts remain as to whether Laurent Blanc knows his favoured line-up and whether he can accommodate both Cavani and Ibrahimovic.
But the former's two goals, including a stunning free-kick, will give the manager a selection headache when the prolific Swede returns to full fitness.
Trapp may not be better than Sirigu
PSG signed the young German goalkeeper Kevin Trapp from Frankfurt in the summer and he had shown early promise with some steady performances.
However, against Bordeaux Trapp let in two absolute howlers and was single-handedly at fault for Les Parisiens' failure to win the game.
The first mistake was an inexcusable handling error at his near post as he palmed Henri Saivet's corner into his net.
The second was perhaps even worse, as he was caught in two minds by the impressive Wahbi Khazri, who profited on the keeper's indecision and dispossessed him to tap it into an open net.
Laurent Blanc has displayed faith in Trapp, leaving long-time number one Salvatore Sirigu on the bench for the opening games of the new season.
However, he may be forced to rethink this decision after two such shocking errors by the 25-year-old German.
Blanc should stick to his Brazilian defenders
Blanc's selection nightmare doesn't end with the Goalkeeper and centre forwards. He has problems at the back as well.
Thiago Silva is the club captain and is irreplaceable in defence for the, but he has been forced to adapt to a number of different centre-back pairings as well as changes at full-back.
Against Bordeaux Blanc chose young Brazilian Marquinhos to partner his captain, leaving David Luiz on the bench. It's fair to say that the alteration didn't pay off, as the youngster had a poor game at the Parc des Princes.
Layvin Kurzawa has been brought in to play at left-back too but can't seem to usurp veteran Maxwell for that position. Perhaps the best back four would be all Brazilian, with Marquinhos and Maxwell as full-backs and the Silva-Luiz axis at centre back.
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