| Youth career | |||
|---|---|---|---|
| 1998–1999 | Liberty Professionals | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 2000–2003 | Bastia | 66 | (11) |
| 2003–2005 | Lyon | 71 | (7) |
| 2005–2014 | Chelsea | 168 | (17) |
| 2012–2013 | → Real Madrid (loan) | 21 | (2) |
| 2014–2015 | AC Milan | 20 | (0) |
| 2015–2016 | Panathinaikos | 16 | (1) |
| 2017–2018 | Persib Bandung | 29 | (5) |
| 2019–2020 | Sabail | 14 | (0) |
| Total | 402 | (43) | |
| International career | |||
| 2002–2014 | Ghana | 59 | (9) |
| Managerial career | |||
| 2020– | Nordsjælland (assistant) | ||
| *Club domestic league appearances and goals | |||