CHALLENGE The_ CHAMPIONS LEAGUE, The_'s CHALLENGE CHAMPIONS LEAGUE

You could also recall the Croatian national team, which, having qualified early from the group in first place, came to England and won, thereby paving the way for the Russian national team. So, big-time sports knows such cases.

I agree with Yegor that we need to decide by voting whether we consider agreements between players to be normal (and write this point in a prominent place so that there are no further questions), or whether we consider it a slap in the face to the opponent for which they should be punished (and accordingly spend efforts on tracking such instances).