maybe i didn't express correct.
I mean, checking my opponents in group A of CH.L., team a1, with 5* quality, is playing in a league with 5* teams (same as team a2).
Team a4 of group A, with 3* players, is playing in a league with 3* teams.
5 teams are from same region, 3 teams are from Indonesia, Vietnam & Brazil.
Click image for larger version. 

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but better stay on topic :
- Injuries , strict rules, issues that affect injuries, proposals
- Communication with developers and administrators of the game.