Krautzun worked with Klopp at Mainz before his hugely successful spell at Dortmund.
Klopp shocked the footballing world when announcing he would step down as Dortmund boss earlier this year.
But despite being linked with the Liverpool job, the 47-year-old will now take some time off before accepting his next managerial role.
He once told me, that one day, when it does not fit with Dortmund anymore, Manchester United would be his club.
Eckhard Krautzun
And Krautzun believes Klopp may be waiting for an opportunity to take over at Old Trafford.
Asked whether Klopp would be well-suited to the Premier League, Krautzun told Goal: "Perfect? I don't know.
"But Jurgen speaks English. And since we spoke about United: He once told me, that one day, when it does not fit with Dortmund anymore, Manchester United would be his club.
GETTY
Jurgen Klopp wants to manage Manchester United
"But at this moment the job is taken.
"Klopp would fit perfectly to an English club that is well lead and well organised. One which has a very good board of directors.
"A club with one person reigning, like Chelsea, would not be right for him."
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