I think Paris Saint-Germain is a team that can be beaten. Every team can be beaten. Real Madrid was good until last year but we see how bad they are this year. The only problem is not that Paris Saint-Germain is playing badly. The best teams in the world are generally performing badly this year. We all know how Manchester City is in the Premier League. So PSG may be the leader in the French League but the truth is that towards the end of the year I still think PSG will be the champions.
Yes, must big teams are having set back in their performance this season which mostly is due to injuries in some of their important players. Real Madrid is having an inconsistent performance, same as Manchester City and other big teams; Arsenal is included and Inter Milan with Bayer Leverkusen; they all did well last season, but this season has been a tough season so far for them which can be over if they all make some adjustments during the transfer window.
For PSG's inconsistency, I am a bit happy because I want the League1 to be competative, but other teams are not showing the effort to make it happen despite the poor performance of PSG this season; I was expecting Monaco to be a tough competator this season which I never gave up because Monaco have good potential this season because they have some quality players in theur squad.
I was hopeful for Marseille and Monaco, but it seems that other teams than Paris Saint-Germain do not have much chance of winning the championship. Monaco and Marseille suffered surprise defeats. They lost unexpected points. Paris Saint-Germain continues to be a little more professional. As always, they are trying to dominate the French league steadily. The Champions League is important for them and they continue on this path. Injuries are the biggest factors affecting a team. It is very lucky for Paris Saint-Germain not to have serious injuries.