Yes, it's a one-game win, and Chelsea played exceptionally well in that match. Perhaps they'll face Paris Saint-Germain again in the Champions League and not play the same way. Perhaps they'll play the same way and beat Paris Saint-Germain again—time will tell. Chelsea drew their first Premier League match, but because every match is important in the Champions League, they should strive for more wins.
The results of any match in any competition will not affect the outcome of the Champions League.
If Chelsea and PSG meet again in the Champions League, both clubs will undoubtedly improve their performance, and their performances will be different from those they perform in other competitions.
The Champions League is one of the biggest competitions every club will pursue.
However, I doubt these two clubs will meet again in the Champions League, as I predict they will likely be eliminated by stronger clubs before they meet.You never can tell if they will be meeting in this seasons Champions league game, and UEFA might decide to set or group them together, it will be an interesting game to watch because a lot of people will also be interested to know what the outcome would be. It will be a tougher match than the previous one because both teams will come out to play, Chelsea would want to maintain their status with PSG, whereas PSG would do everything to avoid a second humiliation in the hands of Madrid.