If it does not occur in the 1/8 stage, then it may occur in the quarter finals, but not likely in the semi finals this time. I am saying this based on some trends that I have observed. And when I say 'trolling', this means that even tactics will likely to fail; you will have the impression that nothing will seem to work as expected. Even if you managed to make your team score a few goals, the other team will reply back with more goals.
But, your team has not won this competition yet, so you might be less prone to such things.