De Boer was furious at his player's inability to follow tactical instructions.
“He is not a youngster, he is 23 and not 18," De Boer told Tuttosport. “When we conceded the goal he lost the ball on the frontline.
“He had three teammates free, he needed to pass it. I treat everyone the same, we will talk about it today.
“I don't want to come across as harsh but I hope it is a sign for everyone."