Manchester City were left unhappy at a penalty awarded against them in the comeback win at Schalke in the Champions League.
After Sergio Aguero had given City the lead, Schalke scored two first half penalties to put the home side 2-1 up at the break.
Things then didn't get better for City, as Nicolas Otamendi saw red midway through the second period as it looked like Pep Guardiola's side would be behind going into the second leg.
But dramatic late goals from Leroy Sane and Raheem Sterling gave City an unlikely win, and a crucial advantage going into the second leg.
However, City's evening may have been easier without the first half drama which saw a penalty given after a three minute stoppage against Otamendi.
With VAR in use in the Champions League for the first time, referee Carlos del Cerro initially awarded a corner when a shot deflected off Otamendi, but reviewed the decision through the video assistant referee.
After a lengthy stoppage, the decision was given to Schalke and Nabil Bentaleb scored.
But according to UEFA's own guidelines, the penalty shouldn't have been given - as the monitor on the sideline was not working.
UEFA say that subjective decisions like the handball against Otamendi must be made via an on-field review, rather than by the official in the control centre.
With no such review available, del Cerro had to trust the official through his earpiece to make the decision.
After the game, Pep Guardiola said he had no issues with the award of either penalty, or Otamendi's red card, and insisted he was a fan of VAR.
But had Sane and Sterling not scored their late goals, Guardiola may have taken issue with the use of the VAR throughout the game.
Same Old UEFA