Schalke's official Twitter account trolled Liverpool fans for the way they reacted to goal-line technology correctly ruled that the ball did not cross the line against Manchester City.
In the first half of Thursday's top of the table clash, Roberto Firmino and Mohamed Salah combined magnificently to put teammate Sadio Mane through on goal, but his shot struck the post.
John Stones attempted to hook the ball away but the clearance rebounded off goalkeeper Ederson.
Then somehow, Stones managed to react quickly and clear the ball off the line, nutmegging Salah in the process. Replays show that the ball was just 1.12cm away from being declared a goal, with goal-line technology confirming the incident.
But some Liverpool fans weren't having the 100 per cent accuracy of the technology, with some even claiming the shadow of the ball proved it went over the line.
So when Schalke's Salif Sane produced a brilliant goal-line clearance in training, the club's English account decided to take the piss out of some Reds by using a genius caption.
The Bundesliga outfit face Manchester City in the Champions League last 16 but they have undoubtedly gained some admirers from their future opponents.
One Liverpool fan was so angry that the ball didn't go in, he set up a petition to review goal-line technology and got over 600 people to sign it.
"It's not fair. We want justice," was the description from 'King Kenny', the creator.