Rostock | Deutsche Luft Hansa | University of Rostock | Rostock (district) | Hansa | Hansa Records | hansa | Steinhagen, Rostock | SS Donau (Rostock, 1922) | SS ''Donau'' (Rostock, 1922) | Rostock (Bezirk) | Hansa (shopping centre) | Hansa Carrier | Hansa-Brandenburg W.33 | Hansa-Brandenburg W.27 | Hansa-Brandenburg W.12 | Hansa-Brandenburg D.I | Hansa-Brandenburg C.I | Gutow, Rostock | 1929 Luft Hansa Junkers G 31 crash |
He made his debut on the professional league level on February 22, 1996 in the Bundesliga for SV Werder Bremen when he came on as a 90th minute substitute for Christian Brand in a game against Hansa Rostock.
In 1985, Kreul left to manage F.C. Hansa Rostock, but was unsuccessful: After only one year, at the end of which the club was relegated to the second-tier DDR-Liga, Kreul was replaced by Werner Voigt.
He appeared once for the first team, playing the last 8 minutes of a 2–1 away loss against Hansa Rostock on 5 April 2012, in the place of Adam Matuszczyk.