Liverpool's lead at the top of the table was cut to four points last week as they weer beaten 2-1 by Manchester City.
Sergio Aguero gave Man City the lead, only for Roberto Firmino to level the scores midway through the second half.
But, Leroy Sane scored the winner 18 minutes from time to give the reigning Premier League champions an important victory.
Man City eventually won the game but it could have been very different for Liverpool.
With the scores level in the first-half, Liverpool were incredibly close to taking the lead.
A mix up between John Stones and Ederson lead to the former producing a miraculous goal-line clearance.
It turned out that the ball was 11mm's away from crossing the line.
Liverpool went on to lose the game and a number of the club's fans complained that VAR was incorrect.
An online petition was created to try and review the use of VAR while another claimed that the goal should have stood as the shadow of the ball was over the line.
You can view the Liverpool fan's tweet below:
To be fair, it was ridiculously close. But Liverpool fans perhaps should have accepted the decision and not tried to claim VAR was wrong.
Of course, a number of football fans jumped on the opportunity to make fun of the Liverpool fan.
And now Schalke's Twitter account has done the exact same thing.
The German club posted a clip in training of Salif Sane producing a miraculous goal-line clearance, similar to that of Stones.
And alongside the clip, they posted the caption: "But I saw shadow, it must have crossed the line".
Football fans have noticed Schalke's attempt to mock Liverpool fans and many are praising them for their tweet.
Stones spoke about his clearance after Thursday night's game.
"I tried to just take everything, he was coming back to his own goal and I spotted the opportunity and cleared it off the line,” said the defender, per mancity.com.
“Fortunately, I reacted quite quickly and I'm just happy it didn't go over the line! Those sorts of things can change a game.
“You see it all the time where a keeper is shouting, and a defender comes and clears it.
“To be honest, I tried to take him, and the ball just had to react quickly!