SPG vs Club Brugge
For group A especially.
the other small teams still have a chance to compete and can get as many points as they can. For example, their Club brugge temporarily has 2 points. If you can win with PSG it will be even better. And even Real Madrid only have 1 point for now.
I think the match between PSG vs Club Brugge will be a fierce match, where PSG is currently still not defeated and Club Brugge will try to beat PSG by raising their points.
If PSG wins again then it is certain that they will qualify for the next round. What I'm worried about is Real Madrid, they are a big team. And can only get 1 point only, if they do not return to the best game. Then that will be disastrous for Real Madrid.