it was atletico madrid that I feel pity for, because they tried, but they were just unlucky to be knockout on goal difference.
We know that goal difference can be a huge factor in proceeding to the next round for competition like this, especially with the low number of games played. While I understand the frustration, it isn't like they don't have any control over how many goals they score or concede. But yeah, it must be terrible if you failed to go to R16 because you failed to score 2 goals or so.