PSG vs Liverpool - just because you have higher XG doesn't mean you should win
Liverpool vs PSG
Dortmund vs PSG last year
Real Madrid vs Dortmund last year
Real Madrid vs Man City last year
(among other games, I only really closely watch champions league playoffs)
You can argue that EA should eliminate randomness from the game, but it would not be as fun and it would not reflect real football. This shit sucks, but it happens in real life too.