With 17 goals in the following season, he was the North Rhine-Westphalia's top scorer as the club won promotion; he added 21 in next year's top flight, being crowned joint league top scorer with Élber Giovane.
With 17 goals in the following season, Christiansen was the North-Rhine Westphalia's top scorer as the club won promotion. He added 21 in next year's top flight, being crowned joint league top scorer with Élber Giovane.