 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Transfers |
 Leiftur < >  Sporting Braga |
| DCA | < | VICTOR HUGO Gomes Silva | CM | BRA | 57 | 1 | 11/05/04 (21) | 85 | | | Leiftur | | | | | | | | 2580 | | | |
| CVH | < | Gustavo Ribeiro Neves, GUSTAVINHO | CM/AM | BRA | 56 | 2 | 23/04/04 (21) | 86 | | | Leiftur | | | | | | | | 2230 | | | |
 FC Seoul < > 1,940,000  Borussia Dortmund |
| ESI | < | SON Heung-min | LW/St | KOR | 66 | 6 | 08/07/92 (33) | 80 | 1.83 | 78 | FC Seoul | | | | | | | | 2430 | | | |
2,000,000 < >  Lille |
| VFX | > | Willy KAMBWALA | CB | FRA | 60 | 77 | 25/08/04 (21) | 89 | 1.92 | 85 | Lille | | 9700 | | | | 0 | 0 | 2715 | 0 | | |
| 1,800,000 < > Lille |
| PPT | > | Miliano JONATHANS | RW | IDN | 58 | 96 | 05/04/04 (21) | 87 | | | Lille | | 6760 | | | | 0 | 0 | 2985 | 0 | | |
3,500,000 < >  Manchester City |
| JHH | > | Martin BATURINA | CM | CRO | 62 | 84 | 16/02/03 (22) | 88 | 1.72 | 68 | Manchester City | | 13060 | | | | 0 | 0 | 4830 | 0 | | |
| 2,000,000 < > Everton |
| YHG | < | Isaac PRICE | CM | NIR | 59 | 89 | 26/09/03 (22) | 91 | | | Everton | | 7690 | | | | 0 | 0 | 3130 | 0 | | |
| 2,000,000 < > VfB Stuttgart |
| IDO | > | Jonas Adjei ADJETAY | CB/FB | GHA | 60 | 70 | 13/12/03 (21) | 91 | 1.88 | 82 | VfB Stuttgart | | 8240 | | | | 0 | 0 | 2715 | 0 | | |
| 3,700,000 < > VfB Stuttgart |
| IBY | > | Bence DARDAI | CM/AM | GER | 61 | 72 | 24/01/06 (19) | 86 | 1.88 | 71 | VfB Stuttgart | | 10220 | | | | 0 | 0 | 5480 | 0 | | |
1,155,000 < >  Parma |
| PRE | > | Stephan EL SHAARAWY | W/WS | ITA | 64 | 79 | 27/10/92 (33) | 88 | 1.80 | 70 | Parma | | 17880 | | | | 0 | 0 | 1800 | 0 | +1 | |
| Released |
| QEZ | 16 | Isak HANSEN-AARØEN | AM | NOR | 51 | 2 | 22/08/04 (21) | 80 | 1.73 | 67 | SV Werder Bremen | | | | | | | | 1065 | | | |
| Loan callbacks |
| HGY | - | Benjamin SESKO | St | SVN | 65 | 99 | 31/05/03 (22) | 92 | 1.94 | 85 | Borussia Dortmund | | 25100 | | | | 3 | 0 | 8675 | 1 | | |
| JGU | - | Alejandro BALDE Martínez | LWB | ESP | 67 | 96 | 18/10/03 (22) | 87 | 1.75 | 69 | Borussia Dortmund | | 30920 | | | | 1 | 0 | 6630 | 0 | | |
| RDS | - | Jorrel HATO | LB/CB | NED | 64 | 98 | 07/03/06 (19) | 90 | 1.82 | 76 | Borussia Dortmund | | 9040 | | | | 0 | 0 | 5670 | 1 | Y | |
| MGD | - | Alejandro Baena Rodríguez, ÁLEX BAENA | W/AM | ESP | 66 | 98 | 20/07/01 (24) | 92 | 1.74 | 69 | Borussia Dortmund | | 28820 | | | | 0 | 0 | 6850 | 1 | | |
