Career as a coach
| Period | Team | Country | Position | |
|---|---|---|---|---|
| 07/2016 - 12/2017 |  | Shandong Taishan |  China | Ass. Coach |
| 01/2016 - 04/2016 |  | Hannover 96 |  Germany | Ass. Coach |
| 08/2015 - 01/2016 |  | Al Salmiya SC |  Kuwait | Manager |
| 07/2014 - 06/2015 |  | Eintracht Frankfurt | Germany | Ass. Coach |
| 05/2013 - 05/2013 |  | Werder Bremen | Germany | Manager |
| 07/2004 - 05/2013 | | Werder Bremen | Germany | Ass. Coach |
| 11/2000 - 06/2001 |  | Bayer Leverkusen | Germany | Ass. Coach |
| 12/1998 - 12/1998 |  | VfB Stuttgart | Germany | Manager |
| 07/1998 - 11/1998 | | VfB Stuttgart | Germany | Ass. Coach |
| 12/1997 - 06/1998 |  | SV Meppen | Germany | Manager |
| 03/1997 - 06/1997 |  | Hamburger SV | Germany | Ass. Coach |
Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 08/1995 - 06/1996 |  | Fortuna Köln | Germany | Midfield | |
| 07/1994 - 07/1995 |  | 1. FC Köln | Germany | Midfield | |
| 07/1991 - 06/1994 |  | Karlsruher SC | Germany | Midfield | |
| 07/1990 - 06/1991 |  | KFC Uerdingen 05 | Germany | Midfield | |
| 07/1989 - 06/1990 |  | Racing Strasbourg |  France | Midfield | |
| 07/1986 - 06/1989 | | Bayer Leverkusen | Germany | Midfield | |
| 07/1982 - 06/1986 | | Hamburger SV | Germany | Midfield | |
| 07/1980 - 06/1982 | | Fortuna Köln | Germany | Midfield | |
| 07/1978 - 06/1980 |  | OSC Bremerhaven | Germany | Midfield |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Intercontinental Cup | 1 | 1 | - | - | 120 | - | - | - | - | - | - | » All matches |
 | Champions League | 9 | 9 | - | 1 | 787 | 2 | - | - | 2 | - | - | » All matches |
| Europa League | 32 | 32 | - | 3 | 2.892 | 4 | - | - | 3 | - | - | » All matches |
| UEFA Super Cup | 2 | 2 | - | - | 180 | - | - | - | - | - | - | » All matches |
| UI-Cup | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Bundesliga | 356 | 351 | 5 | 20 | 30.889 | 47 | 2 | 16 | 57 | 3 | 2 | » All matches |
| 2. Bundesliga | 126 | 125 | 1 | 7 | 10.952 | 23 | - | - | 15 | 1 | 1 | » All matches |
| DFB-Pokal | 37 | 37 | - | 8 | 3.396 | 5 | - | - | 2 | - | - | » All matches |
| Promotion Round 2. Bundesliga | 2 | 2 | - | - | 180 | - | - | - | - | - | - | » All matches |
| Coupe de France | 2 | 2 | - | - | 210 | - | - | - | - | - | - | » All matches |
| Total | 568 | 562 | 6 | 39 | 49.696 | 81 | 2 | - | 79 | 4 | 3 |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| World Cup | 2 | 2 | - | 1 | 136 | - | - | - | - | - | - | » All matches |
| WC Qualifiers Europe | 3 | 1 | 2 | - | 167 | - | - | - | - | - | - | » All matches |
| Friendlies | 23 | 21 | 2 | 4 | 1.828 | - | - | - | 1 | - | - | » All matches |
| EURO | 5 | 4 | 1 | 1 | 381 | - | - | - | 1 | - | - | » All matches |
| EURO Qualifiers | 4 | 2 | 2 | - | 211 | - | - | - | - | - | - | » All matches |
| Total | 37 | 30 | 7 | 6 | 2.723 | - | - | - | 2 | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U21 Friendlies | 8 | 7 | 1 | - | 682 | - | - | - | - | - | - | » All matches |
| U21 EURO | 4 | 4 | - | 1 | 336 | - | - | - | - | - | - | » All matches |
| U21 EURO Qualifiers | 7 | 7 | - | - | 630 | - | - | - | - | - | - | » All matches |
| Total | 19 | 18 | 1 | 1 | 1.648 | - | - | - | - | - | - |