The Dane spent four years with United.
He recalled to Bold: "I felt it a few times. Not like where the ground shook afterwards, but I was then told a few times where things were not good enough.
"I remember two. The one thing was a match where I kept punching the ball and probably should have grabbed a couple of them. It was heavy English weather with rain and wind, and then sometimes it's just safer to punch for the ball. There was a bit where we otherwise won the match and I played very well.
"Then there was a time when I had written something on Twitter that he became aware that I had written. He slightly disagreed with what I had written.
"We had lost a league cup match and I had sat on the bench. It was a young goalkeeper and a young team that had played, and I had subsequently written: 'S*** performance with a s*** result. No excuses, back on the horse', or something like that.
"He did not agree with that."
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