Henke Larsson was picked up as assistant coach by Ronald Koeman, when the Dutchman took over the helm of the Catalan club last year.
"I'm done here and I think it's boring of course.
But so it is in this industry.
I do not have much more to say ", he writes to Aftonbladet.
Last season ended in a third place for Barcelona and at the moment they are in ninth place.
It is unclear what 50-year-old Larsson will do in the future.