National teams managed
| Season | Team | Position | |
|---|---|---|---|
| WC Qualifiers Asia 2023-2025 |  | South Korea | Ass. Coach |
| Friendlies 2024 | | South Korea | Ass. Coach |
| Asian Cup 2023 Katar | | South Korea | Ass. Coach |
| Friendlies 2023 | | South Korea | Ass. Coach |
Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 03/2013 - 12/2015 |  | FC Seoul | South Korea | Defence | 5 |
| 07/2012 - 02/2013 |  | Fortuna Düsseldorf |  Germany | Defence | 22 |
| 07/2010 - 06/2012 |  | Celtic FC |  Scotland | Defence | 11 |
| 07/2009 - 06/2010 |  | SC Freiburg | Germany | Defence | 6 |
| 07/2007 - 06/2009 |  | TuS Koblenz | Germany | Defence | 22 |
| 07/2006 - 06/2007 |  | 1. FSV Mainz 05 | Germany | Defence | 2 |
| 01/2006 - 06/2006 |  | Eintracht Frankfurt | Germany | Defence | 11 |
| 07/2004 - 12/2005 | | Eintracht Frankfurt | Germany | Forward | 11 |
| 07/2003 - 06/2004 | | Eintracht Frankfurt | Germany | Forward | 9 |
| 07/2002 - 06/2003 |  | Arminia Bielefeld | Germany | Forward | 7 |
| 07/2002 - 06/2003 |  | Arminia Bielefeld II | Germany | Defence | |
| 07/2001 - 06/2002 |  | Korea University | South Korea | Forward |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Champions League Qual. | 2 | 2 | - | - | 180 | - | - | - | - | - | - | » All matches |
| Europa League | 3 | 3 | - | - | 270 | - | - | - | 1 | - | - | » All matches |
| Europa League Qual. | 4 | 4 | - | - | 180 | - | - | - | - | - | - | » All matches |
| Bundesliga | 125 | 72 | 53 | 36 | 6.892 | 6 | - | 6 | 5 | - | - | » All matches |
| 2. Bundesliga | 90 | 79 | 11 | 15 | 7.141 | 11 | - | 14 | 4 | - | - | » All matches |
| DFB-Pokal | 15 | 11 | 4 | 5 | 1.110 | 1 | - | - | 2 | - | - | » All matches |
| Premiership | 30 | 24 | 6 | 2 | 2.153 | 2 | - | - | 2 | - | 1 | » All matches |
 | AFC Champions League Elite | 24 | 23 | 1 | - | 2.120 | - | - | - | 4 | - | - | » All matches |
| K League 1 | 82 | 73 | 9 | 8 | 6.601 | 2 | - | 2 | 10 | - | - | » All matches |
| Total | 375 | 291 | 84 | 66 | 26.647 | 22 | - | - | 28 | - | 1 |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | World Cup | 7 | 4 | 3 | - | 424 | - | - | - | 1 | - | - | » All matches |
| WC Qualifiers Asia | 10 | 10 | - | 4 | 689 | 1 | - | - | 2 | - | 1 | » All matches |
| Friendlies | 27 | 19 | 8 | 11 | 1.642 | - | - | 1 | - | - | - | » All matches |
 | Gold Cup | 4 | 4 | - | 2 | 372 | - | - | - | - | - | - | » All matches |
| Asian Cup | 15 | 12 | 3 | 4 | 1.222 | 1 | - | 2 | 3 | - | - | » All matches |
| Total | 63 | 49 | 14 | 21 | 4.349 | 2 | - | - | 6 | - | 1 |