Career
In the 2005-2006 season, Nickenig was called up for the first team of 1. Football Club Köln where he received little playing time and was eventually loaned out to Sportfreunde Siegen in the winter transfer window. He left 1. Football Club Köln on 13 January 2009 and moved to Liechtenstein based club Football Club Vaduz of the Swiss Super League.
After he was released on 1 July 2009 from Football Club Vaduz he signed on 9 July 2009 a one-year contract with VfL Osnabrück.