Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 02/2026 - 12/2026 |  | Incheon United |  South Korea | Forward | 72 |
| 01/2023 - 02/2026 |  | Ulsan HD FC | South Korea | Forward | 27 |
| 03/2020 - 12/2022 | | Ulsan HD FC | South Korea | Midfield | 72 |
| 09/2018 - 03/2020 |  | VfL Bochum |  Germany | Midfield | 11 |
| 07/2015 - 06/2018 |  | Crystal Palace |  England | Midfield | 14 |
| 02/2015 - 06/2015 | | Crystal Palace | England | Midfield | 21 |
| 07/2009 - 02/2015 |  | Bolton Wanderers | England | Midfield | 27 |
| 01/2007 - 06/2009 |  | FC Seoul | South Korea | Midfield | 27 |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Club World Cup | 3 | 1 | 2 | 1 | 82 | - | - | - | - | - | - | » All matches |
| 2. Bundesliga | 35 | 27 | 8 | 12 | 2.514 | 1 | - | 6 | 6 | - | - | » All matches |
| DFB-Pokal | 2 | 2 | - | 2 | 125 | - | - | - | 2 | - | - | » All matches |
| Premier League | 105 | 62 | 43 | 39 | 5.735 | 8 | - | 12 | 5 | - | - | » All matches |
| Championship | 109 | 88 | 21 | 27 | 7.931 | 10 | 1 | 3 | 14 | - | - | » All matches |
| FA Cup | 17 | 13 | 4 | 2 | 1.227 | 3 | - | - | 1 | - | - | » All matches |
| League Cup | 14 | 5 | 9 | 1 | 748 | 1 | - | 1 | - | - | - | » All matches |
 | AFC Champions League Elite | 40 | 20 | 20 | 15 | 2.149 | - | - | 3 | 2 | - | - | » All matches |
| K League 1 | 195 | 94 | 101 | 55 | 11.095 | 18 | 2 | 19 | 21 | - | - | » All matches |
| Cup | 4 | 2 | 2 | 2 | 205 | - | - | - | - | - | - | » All matches |
| Total | 524 | 314 | 210 | 156 | 31.811 | 41 | 3 | 44 | 51 | - | - |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| World Cup | 7 | 7 | - | 2 | 604 | 2 | - | - | 1 | - | - | » All matches |
| WC Qualifiers Asia | 24 | 19 | 5 | 8 | 1.624 | 2 | - | - | 1 | - | - | » All matches |
| Friendlies | 46 | 39 | 7 | 23 | 3.253 | 5 | - | 2 | 4 | - | - | » All matches |
| Olympic Games | 3 | 2 | 1 | 1 | 211 | - | - | - | - | - | - | » All matches |
| Asian Cup | 12 | 11 | 1 | 6 | 960 | - | - | 2 | 1 | - | - | » All matches |
| Total | 92 | 78 | 14 | 40 | 6.652 | 9 | - | - | 7 | - | - | ||
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
| U20 World Cup | 3 | 3 | - | - | 270 | - | - | - | - | - | - | » All matches |
| Total | 3 | 3 | - | - | 270 | - | - | - | - | - | - |