Career
Lehmann began his career with VfB Stuttgart, and made one appearance for the reserve team, on the last day of the 2007-2008 season. He spent the next two seasons on loan with Eintracht Frankfurt and then Energie Cottbus, where he again played reserve team football, but he did make one appearance for the Cottbus first team in the 2. In 2010, Lehmann signed for 1.
Football Club Heidenheim of the 3.
Liga. In his first season he served as backup to Erol Sabanov, and made five appearances, but took over as first choice the following season. He lost his place to Sabanov again after 11 games of the 2012-2013 season, and left the club in January 2013.
After half a season without a club, he signed for VfL Osnabrück in September 2013.
