Former Barcelona star Ronald de Boer admits new Manchester United boss Louis van Gaal can be "scary".
De Boer played for Van Gaal at Barca and Ajax.
"Yes, he can be scary," De Boer told the Daily Mail. "But that is because he is so passionate. He is 100 per cent all the time and he wants the same in return. You could see it on the sidelines but he could be even more intense on a Monday morning, especially if we'd lost.
"If he knew that you hadn't played well, he would be straight on top of you. He is a big guy, he wants to win and that is where he can be intimidating and intense. But even if he shouts at you, he will listen to what you have to say.
"He gives players chances to prove themselves. If you play badly in one game he won't drop you straight away. He will give you the trust to repay him with a better performance next time. He puts trust in players but he expects it back from them. He doesn't want to be let down."
