Instead of posting a jovial thumbs up to their 12.3 million followers, the official social media account inadvertently posted a different message entirely.
The official Champions League Twitter account has an extra-special message for all those teams, players and fans heading to the group stage. A big ol' middle finger.
But they don't really mean it, honest. It was a simple copy-and-paste error for the poor social media guy. Fingers - not middle ones - should really be pointed at whoever position the far more jovial "Thumbs Up" emoji so close to The Bird.
The tweet was quickly deleted and amended but here is the inadvertent message sent to a mere 12.