| From | Team | Fee | Apps | Goals | To | |
|---|---|---|---|---|---|---|
| 2005 | US Quevilly-Rouen MΓ©tropole | - | 26 | 22 | 2006 | (Player) |
| 2005 | Mouscron | - | 26 | 22 | 2006 | (Player) |
| 2006 | Mouscron | - | 12 | 8 | 2008 | (Player) |
| 2008 | 1899 Hoffenheim | Β£2,700,000 | 97 | 37 | 2011 | (Player) |
| 2011 | West Ham United | - | 12 | 7 | 2011 | (Player) |
| 2011 | Newcastle United | Free | 54 | 29 | 2013 | (Player) |
| 2013 | Chelsea | Β£7,000,000 | 33 | 7 | 2014 | (Player) |
| 2014 | Besiktas JK | Β£8,000,000 | 31 | 19 | 2015 | (Player) |
| 2015 | - | - | 29 | 20 | 2018 | (Player) |
| 2017 | Besiktas JK | Loan | 2 | 1 | 2017 | (On loan) |
| 2018 | - | - | 17 | 5 | 2019 | (Player) |
| 2018 | GΓΆztepe | - | 13 | 7 | 2018 | (Player) |
| 2019 | Istanbul Basaksehir | - | 59 | 20 | 2021 | (Player) |
| 2021 | FC Lugano | - | 3 | 0 | 2021 | (Player) |