Career as a coach
| Period | Team | Country | Position | |
|---|---|---|---|---|
| 07/2026 - 12/2026 |  | Myanmar |  Myanmar | Manager |
| 06/2024 - 01/2026 |  | Yunnan Yukun |  China | Manager |
| 11/2021 - 05/2024 |  | Hong Kong |  Hong Kong | Manager |
| 06/2018 - 04/2019 |  | Incheon United |  South Korea | Manager |
| 05/2016 - 03/2018 |  | North Korea |  North Korea | Manager |
| 01/2015 - 12/2015 |  | Austria Salzburg |  Austria | Manager |
| 11/2011 - 03/2012 |  | Karlsruher SC |  Germany | Manager |
| 12/2010 - 01/2011 |  | AE Lárissa |  Greece | Manager |
| 07/2008 - 08/2009 |  | 1. FSV Mainz 05 | Germany | Manager |
| 11/2007 - 06/2008 |  | Kickers Offenbach | Germany | Manager |
| 07/2005 - 06/2006 |  | Bor. Mönchengladbach | Germany | Ass. Coach |
| 07/2003 - 10/2004 |  | Rot-Weiß Oberhausen | Germany | Manager |
| 07/2000 - 06/2001 |  | FC Locarno |  Switzerland | Manager |
National teams managed
| Season | Team | Position | |
|---|---|---|---|
| Friendlies 2026 | | Myanmar | Manager |
| WC Qualifiers Asia 2023-2025 | | Hong Kong | Manager |
| Friendlies 2024 | | Hong Kong | Manager |
| Asian Cup 2023 Katar | | Hong Kong | Manager |
| Friendlies 2023 | | Hong Kong | Manager |
| Asian Cup Qual. 2023 | | Hong Kong | Manager |
| Friendlies 2022 | | Hong Kong | Manager |
| Asian Cup Qual. 2019 | | North Korea | Manager |
| Friendlies 2018 | | North Korea | Manager |
| Friendlies 2017 | | North Korea | Manager |
| Friendlies 2016 | | North Korea | Manager |
Career as a player
| Period | Team | Country | Position | |
|---|---|---|---|---|
| 04/1997 - 06/1999 |  | FC Lugano | Switzerland | Forward |
| 07/1995 - 04/1997 |  | FC Zürich | Switzerland | Forward |
| 01/1995 - 06/1995 |  | Dynamo Dresden | Germany | Forward |
| 01/1994 - 12/1994 |  | Hamburger SV | Germany | Forward |
| 09/1991 - 12/1993 |  | Eintracht Frankfurt | Germany | Forward |
| 07/1990 - 09/1991 |  | Fortuna Düsseldorf | Germany | Forward |
| 07/1988 - 06/1990 | | Eintracht Frankfurt | Germany | Forward |
| 11/1985 - 06/1988 |  | 1. FC Nuremberg | Germany | Forward |
| 01/1984 - 10/1985 |  | Vålerenga IF |  Norway | Forward |
| 01/1982 - 12/1983 |  | Fredrikstad FK | Norway | Forward |
| 01/1979 - 12/1981 |  | Østsiden IL | Norway | Forward |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Champions League | 2 | 2 | - | - | 180 | - | - | - | - | - | - | » All matches |
| Europa League | 2 | 1 | 1 | - | 113 | - | - | - | - | - | - | » All matches |
| Cup Winners Cup | 6 | 6 | - | 1 | 540 | - | - | - | - | - | - | » All matches |
| Bundesliga | 243 | 188 | 55 | 41 | 17.232 | 67 | 2 | 16 | 10 | - | - | » All matches |
| DFB-Pokal | 15 | 11 | 4 | 1 | 1.103 | 9 | - | - | - | - | - | » All matches |
| Franz-Beckenbauer-Supercup | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Relegation Play-offs Bundesliga | 2 | 2 | - | - | 180 | 1 | - | - | - | - | - | » All matches |
| Super League | 91 | 85 | 6 | 10 | 7.350 | 4 | - | - | 13 | - | - | » All matches |
| Total | 362 | 296 | 66 | 53 | 26.788 | 81 | 2 | - | 23 | - | - |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WC Qualifiers Europe | 5 | 4 | 1 | 2 | 347 | - | - | - | - | - | - | » All matches |
| Friendlies | 15 | 13 | 2 | 7 | 1.096 | 3 | 1 | - | - | - | - | » All matches |
| EURO Qualifiers | 6 | 5 | 1 | 1 | 468 | 2 | - | - | 1 | - | - | » All matches |
| Total | 26 | 22 | 4 | 10 | 1.911 | 5 | 1 | - | 1 | - | - |
