Manchester United boss Erik ten Hag admits he was angry with his players after their Europa League quarterfinal defeat at Sevilla.
Ten Hag felt his players failed to give their all on Thursday night.
Ahead of Sunday's FA Cup semifinal against Brighton, he said: "Sometimes yeah, I can go strong in certain situations. But it's about the timing of when to use. As a coach, communication style, you can pick many styles and this is one of them.
[On Thursday] I was really mad. For me it was so unacceptable.
"You can make a mistake but you have to carry on. If you play a quarter-final in the Europa League you give everything and we didn't.
"For any club, for any team, for me that is unacceptable. As a manager I can't accept that my team is not giving its best. The team, individuals I will never accept it."
Ten Hag added, Yes, of course, I make them aware what my analysis was, what my feelings about the game was, what my effects of the game were.
"They didn't match the standards of how I manage a team in professional football."