I was very lucky in the Cup today. My opponent was 15-20% higher quality than me, but I managed to win the first leg by 1-0. I was expecting a 4-0 or similar loss today (which usually happens to me if I win by small margin despite this level of difference). Here is the lucky part: apparently my opponent is a tanker and forgot/did not have time to change from the illegal formation with a ST in GK position, so I won pretty easily.
The sad part is I have another stronger opponent in the next round, as well.