PSG are in top form and currently have one of the best squads in Europe but are not unbeatable. This is the league games and they are sure to encounter tough games like this as long as they compete in the league. Against Nantes they played away to a tough opponent and they were the better team in the game but just didn’t score more goals. They got a win, this is a positive result for the team.
Currently I think PSG squad is the best in Ligue 1 but they are not the best in Europe following their performance in their game against Chelsea and Tottenham in finals, they are beatable that's true but in their league they shouldn't lose because the squad they have can't be compared to that of the other team in the league which is why their match against Nantes fans expected to see them defeating Nantes convincingly but they managed to get a narrow win to start the new season, they won the game it's still a positive start to the season for them.