2005 German football match-fixing scandal
In early 2005, German football was overshadowed by the discovery of a €2 million match fixing scandal centred on second division referee Robert Hoyzer, who confessed to fixing and betting on matches in the 2. Bundesliga, the DFB-Pokal (German Cup), and the then third division Regionalliga.
Source: Wikipedia — 2005 German football match-fixing scandal (CC BY-SA 4.0)