Christopher KullmannChristopher Kullmann is a German former professional footballer who played as a forward.CareerKullmann was born in Katzhütte. He played his first Bundesliga match for Borussia Dortmund, and first fully professional game, on 15 February 2009 in a 1–1 draw against FC [Energie Cottbus|Energie Cottbus]. He was substituted in the 90th minute. On 27 April 2009, the 22-year-old striker signed a professional contract with Borussia Dortmund that kept at the club until 30 June 2011.