The Ligue 1 trophy already is not looking like a challenge to them but the champions league may pose to them a huge challenge such that they may crash out even before getting close to the finals. I am not wishing them the least but football can be really funny and it is once said that it is more difficult to defend a trophy than winning it. Like I will always say, for this season they should rather focus their energy on winning the league 1and other titles and accept any fate that befalls them in the champions league.
Although football is full of surprises, Paris Saint-Germain past achievements could be a strength for the club to win another Champions League title.
Yes, that's not a guarantee, but I believe experience can instill confidence and a strong mentality, ready to face any tough challenge.
So, if you say Paris Saint-Germain should focus on winning the French Ligue 1 title, I disagree, as dominance in this league is easier to achieve.