Career
Bundesliga.
Youth
After playing youth football with a succession of local clubs, including SSV Ulm 1846, Celozzi joined the youth setup of Bayern Munich in 2005. He quickly progressed to the reserve team, making his debut in the Regionalliga in August 2005, aged just 16. Over the next three seasons, Celozzi played 81 games at this level, scoring three times.
He was named as part of the first-team squad for the 2007-2008 season, but did not make an appearance, continuing to be a regular for the reserves.
Karlsruher South Carolina
In July 2008, Celozzi joined Karlsruher South Carolina, and made his first appearance on 10 August 2008 in the first round of the DFB-Pokal, against SpVgg Ansbach. He made his Bundesliga debut on 16 August 2008 in the opening fixture against VfL Bochum.
Karlsruhe were relegated at the end of the season. VfB Stuttgart
Following Karlsruhe"s relegation, Celozzi moved to VfB Stuttgart in June 2009.
On 3 May 2012, VfB Stuttgart announced that the expiring contract of Celozzi would not be extended.
Eintracht Frankfurt
On 7 May 2012, Eintracht Frankfurt announced that they had signed Celozzi on a two-year contract, starting from the 2012-2013 Bundesliga season. VfL Bochum
On 14 July 2014, Bochum announced that they had signed Celozzi on a two-year contract, starting from the 2014-2015 2. Bundesliga season.