This match is indeed unbelievable. It is hard to explain why Real Madrid are playing like a farmers league team here. It looks like I made a huge mistake by trusting their win in 90 minutes. 
2 goals were due to simple defensive mistakes by Rüdiger and Asencio. Rüdiger is like the last player to make such mistake on the pitch normally. As it is 3-0 now I have lost my belief in them to make a comeback even though there are 45 more minutes to be played.
Now it's the other way around—Real Madrid is playing like a farmer's league, while PSG is playing in a tough league. 2 goals were due to simple defensive mistakes by Rüdiger and Asencio. Rüdiger is like the last player to make such mistake on the pitch normally. As it is 3-0 now I have lost my belief in them to make a comeback even though there are 45 more minutes to be played.
Damn... a mistake by an experienced defender cost Real Madrid a goal, and now it will be difficult to come back because it seems the Real Madrid players have lost confidence.
PSG's play is too fierce and difficult to beat, which would suggest that Real Madrid has lost—there's no doubt they can score even a single goal in the second half.