Is CUP competition worth playing???

[meis]

In round 1 I've soundly beaten a rival from the previos season (he was 2nd, I was 1st in the League).

Last night in round 2, I was beaten 0-1 (me home, he was inactive) by a team which has less than 10 average rating than my team.

Even if I was lucky enough to avoid the 9-star team, the best I can win is 2nd place.

I have CL competition too. I can sell a player or 2 and save some money, if I'm not playing all 3 competitions.

Thoughts? Should I give up the 2nd match? Is CUP competition worth playing???