The 54 year old coach had been able to amass only four points this term in four games after their loss of 1-0 to VfB Stuttgart, the board had had enough and gave him his dismissal.
He joined from Arsenal where he served as Academic coach and he was dismissed along with his staff that includes: assistant coach Fredrik Ljunberg.
The club is to face Werder Bremen and then Bayern Munich.
Olaf Rebbe who is director of sports said they would not be using the caretaker scheme but would instead bring a new head coach as soon as possible. They also announced that the decision to remove Jonker had not been based on just the match against Stuttgart and they wished to thank the coach for everything he had done for the club.
