High School Exam 1989
1991 – 1998: Study of Economics at the Universities of Hagen and Münster
1987: Start as a professional football player for FC Schalke 04
1998 - 1999: AC Milan
1999 - 2003: Borussia Dortmund
2003 - 2008: FC Arsenal London
2008 - 2010: VFB Stuttgart
May 2010: Retirement as a professional player
June 2010: Commentator for SKY Germany at FIFA World Cup 2010
March – May 2011: Comeback for FC Arsenal London
March - May 2011: UEFA A & B – License in Germany
March - May 2011: Coaching experience at FC Arsenal Reserves
May 2012-June 2013: Coaching Pro-License in Wales
2017-2018: Assistant coach under Arsène Wenger / Arsenal
Oktober 2008: Stakeholder Software Start-UP
September 2009: Stakeholder 2. Start-Up
July 2011: Commentator for Sky Germany
2012: Diverse Investments in Start-Ups
2013: Investments in Start-Ups
July 2014: Mediaexpert RTL, Germany