That's exactly my taughts when I knew the stats of their defensive lineup, I mean it's totally amazing seeing that both the attack and defense of this team is so strong, on the other hand their midfield can also be said to have the same strength and ability, I believe it's because all the players of the team don't play a particular fixed role as they rotate and play together as one and it's very hard to mark or even score them.
If you see Chelsea journey in this tournament they have conceded 5 goals in 6 games they have played so far. This shows that Chelsea defence is not as strong as PSG who has conceded only one goal in this tournament. Both Chelsea and PSG have lost only one game in this tournament and we will see today which team will lose his second game of the tournament. The match will start in few hours from now and I would go with PSG because of the momentum they have.