Some of Van Halst's colleagues were equally as flabbergasted that Antony received no punishment for his actions.
Utrecht manager Ron Jans said: "The VAR was not there today. Also with that cross to [Seb] Haller, he is completely held. You have to be lucky with moments like that and we haven't had that a few times. That Virgil van Dijk handball against Olympique Lyon, today two more moments that are ultimately decisive again.
"I think they could have just whistled for a penalty and a red card, and if he had been completely held down. And there was also a moment when they could have been down to 10 men in the first half. But yeah, that doesn't suit us in Europe. Moments like that can be decisive and then they make it 2-0 and you think, 'Oh dear'."
And Utrecht defender Nick Viergever added: "But he was in a lot of pain for a reason. The referee said he had assessed it and that it was unfortunate. We also had maybe half a penalty moment with Seb [Haller], then it's not easy."