Career
Football Club Nürnberg. Bundesliga. On 10 January 2009, he moved from 1899 Hoffenheim to Liechtenstein to play for Football Club Vaduz of the Swiss Super League and was released on 30 June 2009. After one year he left SV Sandhausen and signed a three-year contract for Energie Cottbus.
After the end of his contract with Cottbus on 1 July 2013, Kirschbaum moved to VfB Stuttgart on a free transfer.
On 10 March 2013, Thorsten Kirschbaum signed a contract until June 2016 with VfB Stuttgart. On 1 July 2015 Kirschbaum moved to 1.
Football Club Nürnberg. He has made seven appearances for the Germany U-21.