Transfers
| Date | From | To | Type |
|---|---|---|---|
| 31.07.2019 | Borussia Dortmund | — | Loan |
| 25.07.2018 | Borussia Dortmund | Fulham | Loan |
| 22.07.2016 | VfL Wolfsburg | Borussia Dortmund | € 32M |
| 02.02.2015 | Chelsea | VfL Wolfsburg | € 32M |
| 01.07.2013 | Bayer Leverkusen | Chelsea | € 22M |
| 01.07.2011 | FSV Mainz 05 | Bayer Leverkusen | € 8M |