That form has reportedly attracted the interest of Real Madrid, who see the Norwegian as a long-term successor for Karim Benzema.
However, the 2020 Golden Boy is not leaving the Signal-Iduna Park anytime soon, according to the club's CEO.
"I don't think that will happen. Erling and his advisor Mino Raiola know what they have in us. I can only advise him to do things like Robert Lewandowski,' he said, as per Goal.
"Haaland gave himself the time to mature into an absolute world-class player in Dortmund. You won't be able to do that in a year.
"Because it is clear that if Erling should leave us at some point, then he will only go to an even bigger club, and so many are not considered.
"If you join a club like - just for an example - Real Madrid, you have to be world-class."