Football news - WATCH: 'The worst penalty decision of all-time' at the Etihad Stadium?
There are bad refereeing decisions and then there's this...
It was a truly unbelievable decision which you can watch below:
Incredibly, Man City's social media account tweeted:
'Tripped' - the absolute cheek!
It's fair to say that Twitter was in a state of shock after seeing the decision.
At least the Shakhtar Twitter team saw the funny side to the incident: