Newcastle United manager Eddie Howe was furious with referee Mike Dean after Thursday's loss to Liverpool.
The Reds equalised though Diogo Jota despite Isaac Hayden going down with a head injury inside the box.
"We didn't do everything right but we certainly didn't get the luck either," Howe said.
"The turning point is an obvious one. Cannot understand how Mike has not stopped the game. It was clear for me, game had to be stopped. A key moment in the match."
He added: "I couldn't believe what I was seeing. Isaac was holding his head immediately and the priority has to be the safety of the player. I felt it was a wrong decision and we've been harshly treated today."
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